This pumpkin sourdough bread recipe gave me a RUN for my money!

It took 10 recipe iterations and more than 400 recipe testers to land on the winner, but all the failed loaves were so worth it because this loaf is heavenly.

Recipe testers described it as “fall in a loaf,” “dreamy,” and the “best pumpkin swirl bread ever!”

My two main goals for this one?

1. Use up an entire can of pumpkin purée
2. Most importantly, actually taste like pumpkin!

We don’t want just a pretty orange loaf — we want an aromatic, pumpkin-forward loaf that smells like autumn. This delivers. Let me show you how to make it!

“Another knockout recipe. I know you struggled to get the perfect loaf, and you darn sure did it!” —Recipe tester from Star, Idaho

Disclosure: Some of the links to products I recommend in this post are affiliate links — if you choose to purchase through one of my links, I may earn a small commission, which helps fund this website, recipe development, and monthly giveaways. I sincerely appreciate your support.

Why You’ll Love This Pumpkin Sourdough Bread

• It actually tastes like pumpkin: In the final round of testing, 97% of testers said there was enough pumpkin flavor — up from 67% in the first round.

“Great pumpkin flavor but not so in your face for people that don’t love pumpkin.” —Recipe tester from Champaign, Illinois

• It’s sweet, but not too sweet: 88% of testers said the sweetness was just right; it’s well-balanced with the pumpkin and pumpkin pie spice blend, so it tastes indulgent without being cloyingly sweet. But make no mistake: this is a sweet loaf, not a savory one.

“I love the pumpkin spice taste without the loaf being overly sweet.” —Recipe tester from Huntsville, Alabama

• Zero waste: One can of pumpkin purée covers both the loaf and the pumpkin butter, so there’s no half-used can lingering in your fridge. Until the leftover purée molds. And you throw it away and feel awful for wasting that can you swore you’d use up. Just me?

“I also really love that it uses the entire can of pumpkin, if you make the spread.” —Recipe tester from Alvin, Texas

• A swirl that stays put: 90% of testers reported no leaks, thanks to the dry swirl and egg wash (or water) method.

“I love that the swirl stayed contained & paired well with the pumpkin spread.” —Recipe tester from Bloomfield, Michigan

• It’s approachable for a swirl loaf: 95% of testers rated the instructions “very clear.” The method might look intimidating at first, but I break down every step so you can nail it on your first try.

“A beginner could easily do this with little support.” —Recipe tester from Palm Desert, California

The Recipe Testing Journey

I expect recipe testing to be a journey, but sometimes, it’s a whole dang expedition. This is one of those recipes.

Long story short: I went through 10 recipe variations to get to the winner you see here today. It’s not the most I’ve ever done (lookin’ at you, tomato basil bread), but it’s up there.

“All of your many tests and hard work paid off, this is incredible! It’s easy and such a beautiful loaf!!” —Recipe tester from Columbia, Tennessee

Silly ole’ me thought I had a winning recipe after my third test, but the testing group poked a lot of holes in that one. After analyzing their feedback, it took me 7 more tests to nail it down, but we got there.

I sent the final version back to the testing group for a second round. In the end, more than 400 bakers tested this recipe from across the U.S. and Puerto Rico, as well as the U.K., Ireland, South Africa, Switzerland, Iran, Australia, and Canada. Here’s how much it improved between rounds:

	Round 1	Round 2
Average rating	4.02 / 5	4.66 / 5
Enough pumpkin flavor	67%	97%
Perfect sweetness	56%	88%
Would make it again	66%	85%

Testers who tried both rounds gave feedback like:

“Much easier to make […]. It has a much better flavor compared to the original.” —Recipe tester from San Antonio, Texas

“I am in love with this version and the cream cheese pumpkin butter yum!” —Recipe tester from West Frankfort, Illinois

“This is by far the best recipe testing I’ve done.” —Recipe tester from Porterville, California

Here’s a look at some of their gorgeous photo submissions:

“I’ve made quite a few pumpkin loaves from different recipes, and this is the best tasting pumpkin loaf I have had.” —Recipe tester from Rogers, Arizona

8 Lessons Learned for Better Pumpkin Swirl Sourdough Bread

Here’s a breakdown of the 8 takeaways from recipe testing:

1. Not all pumpkin purées are created equal: Purée consistency can vary from brand to brand. That can become a big problem down the line because your dough may not have the same consistency as mine! I’ve added a “texture check” video to the recipe card to catch this early and course-correct from the start.
2. Roasting pumpkin purée can be inconsistent: While it can intensify and deepen the pumpkin flavor, many recipe testers struggled with it. Some didn’t like the extra step in the first place. Beyond that, results were all over the place — 45% of testers didn’t end up with the target amount of roasted purée, and 28% said the roasting time was off.
3. Pumpkin flavor depends on sweetness and spice: Pumpkin, on its own, tastes like butternut squash. To get intense pumpkin flavor, you must balance it with sweetness and spices. That’s why my test with added pumpkin powder didn’t really help; it just made the bread taste more vegetal. Tests where I reduced the sugar had a similar effect — the bread tasted too sour, too squash-like. Testers who reported not enough pumpkin flavor were nearly twice as likely to say the loaf wasn’t sweet enough. I believe these go hand in hand.
4. Cinnamon really messes with fermentation: I already knew this, but feedback from the recipe testers reinforced it. It had 1 tsp cinnamon in the dough (plus 2 tsp of pumpkin pie spice, which also contains cinnamon). While my loaf didn’t suffer, many testers reported very slow or even stagnant fermentation. It might come down to the exact type of cinnamon used, but either way, to make this recipe as foolproof as possible, we needed to remove the additional cinnamon from the dough.
5. Butter in the swirl comes with trade-offs: I’m a major fan of a cinnamon roll-esque swirl with butter, brown sugar, and spices. The trade-off? Butter can cause separation, leaving you with slices that unravel. I removed the butter and instead brushed the dough with an egg wash before sprinkling on the dry swirl mixture — that helps the mixture adhere so our swirl stays put.
6. Adding a wet swirl mixture during stretch and folds is for the birds: I’ve seen other bakers do this successfully on social media, but I can’t say I’ll ever do it again. It was a huge mess and made shaping really slippery and difficult. It can work, but the result wasn’t a clear improvement over my regular swirl method, so why bother?

7. Bake times on sweet loaves vary: Every oven is different, and sweet loaves are temperamental, so a set bake time doesn’t work. Some testers burned their loaves, while others pulled them out underbaked — even in the second round, about half of testers needed more time than the recipe suggested. My fix is to check the internal temperature before permanently removing the lid, which helps you get consistent results, even when oven temperatures vary.
8. Do NOT sleep on the pumpkin spread: I included a simple pumpkin spread recipe (you can use butter or cream cheese) as an afterthought — a way to use up the leftover purée from the can (I hate waste). Turns out the pumpkin spread is the star of the dang show. 164 of the 169 testers who made it loved it. It elevates this bread to another level, so don’t skip it!

“Definitely better when toasted with the whipped butter mixture. Reminded me of the best part of the cinnamon roll, the gooey middle.” —Recipe tester from Michigan

Baker’s Timeline

This suggested timeline spans three days, but most of that time is hands-off.

Use the following timeline as a guide, but please know bulk fermentation timing varies. Jump to the next section for a bulk fermentation table with averages from the recipe testing group.

Time	Step
DAY 1: 9:00 PM	Feed your starter
DAY 2: 8:00 AM	Mix the dough (bulk fermentation starts now)
9:00 AM	Stretch and folds
10:00 AM	Coil folds
2:00–3:00 PM (timing varies)	Bulk fermentation ends; shape the swirl loaf and cold proof (8–36 hours)
DAY 3: any time	Preheat, score, and bake
About 1–2 hours after baking	Slice and enjoy once completely cooled!

Bulk Fermentation Timing

Bulk fermentation times below come from recipe testers who reported a perfect loaf. But timing varies with dough temperature, starter strength, and other factors, so use these ranges as a general guide and watch your dough rather than the clock.

Some testers fell outside these ranges.

Dough/Room Temp	Typical Bulk Fermentation Time
68–73°F (20–23°C)	7–8 hrs
74–76°F (23.5–24.5°C)	6–7 hrs
77–80°F (25–26.5°C)	5.5–6.5 hrs

Equipment You’ll Need

This recipe is a little unique because it has a swirl, and an oval shape works best for the finished loaf. We roll the dough into a log to create the swirl.

You have two equipment options for proofing and baking the shaped loaf:

1. Oval banneton and Dutch oven: The Oval Smooth Medium from Flourside is perfect for this loaf (5% off with code TSG5). I also use the Brod & Taylor oval, but the loaf is a bit big for it. For Dutch ovens, I love the oval option from Krustic ($15 off with code REBEKAH15) as well as the Bulka bread oven (available on their website or Amazon).
2. Loaf pan: My favorite loaf pans are from USA Pan, and for this recipe, you’ll want a larger one — ideally about 10″ x 5″, or the 1.5 lb size. They’re Teflon-free, and the nonstick coating makes the bread easy to release. I recommend using parchment with this loaf, however, to contain any swirl ingredients that might escape!
   
   After shaping the dough, put it in a parchment-lined loaf pan (seam-side down). When it’s time to bake, use the double loaf pan method (place a second loaf pan of the same size upside down on top to trap steam). Be aware that your bake time might be about 10 minutes longer — be sure to check the internal temperature to confirm doneness!

Related: The Best Sourdough Bannetons (And What to Skip)

Aside from that, the rest of the equipment list is just your standard baking equipment:

• Scale: I love the OXO 11-lb scale because it gives a fast and accurate reading.
• Starter jar: For mixing and fermenting your sourdough starter.
• Bowl: A large mixing bowl for mixing, bulk fermenting, and doing your stretch and folds. If you’re using a stand mixer, you can let the dough bulk ferment right in the mixer bowl.
• Bowl cover: I love these Doe A Deer bowl covers (15% off with code THATSOURDOUGHGAL), but you can also use plastic wrap or a plate to cover your bowl.
• Danish dough whisk: For easier hand mixing.

• Square dish: Transfer dough to a square dish for bulk fermentation, making it easier to shape later (optional).
• Pastry brush: For the egg wash (or water).
• Small bowls: For the egg wash and swirl ingredients.
• Parchment paper: To transfer the dough into the hot Dutch oven.
• Bread lame: For scoring.
• Half sheet pan: Place it on the rack directly below your Dutch oven to help prevent a burnt bottom.
• Thermometer: An instant-read thermometer to confirm the loaf’s internal temperature and doneness. 
• Cooling rack: Let the loaf cool for 1–2 hours before slicing.
• Bread knife: A serrated knife makes clean slices without squishing the soft crumb.
• Bread bag: For storing the loaf at room temperature for up to 3 days (15% off with code THATSOURDOUGHGAL). A glass cake stand also works great.

Tips for Nailing This Pumpkin Sourdough Bread Recipe

I went through all those failures during testing so you don’t have to.

Here are some tips from me and the recipe testers to help you succeed:

1. Don’t skip the texture check: I’ve included a video of the dough right after I mixed it — watch it and compare your dough to mine. If yours is stiffer, add water 1 tablespoon at a time. If it’s looser, add bread flour 1 tablespoon at a time.

“Very helpful to have the little video of what the dough should look like because I thought it was a little too wet but trusted the process because of the video!” —Recipe tester from Nashville, Tennessee

• Set aside the pumpkin for the spread first: Weigh out the 55 g for the pumpkin butter before you start mixing. Two testers accidentally used the extra pumpkin in the wrong place.
• Your pumpkin brand matters: Some purées are much wetter than others, which is likely why so many testers needed extra flour. I used Libby’s to develop this recipe.

“I used Trader Joe’s Organic Pumpkin purée (can) and it seemed very watery. Probably the reason I had to add an additional 3 Tbsp of flour.” —Recipe tester from Henderson, Nevada

• Keep a little water nearby: Wet hands make sticky dough much easier to handle during folds.

• Use egg wash or water to help the swirl stick: The egg wash helps that swirl mixture adhere really well. A misting of water also works, so don’t panic if you’re egg-free.

“This was my first time using an egg wash with a swirl. It worked amazing! I’m definitely going to start doing this technique more often.” —Recipe tester from Huntsville, Alabama

• Toast it: The testers who found their slices a little dense or moist said toasting made them perfect. I personally don’t want to eat this bread any other way now — toasted with the pumpkin butter, it’s a little slice of heaven. My kids get picky about flavored loaves, but they eat this UP.

Ingredient Substitutions

How to Make the Perfect Swirl

You can find the full recipe instructions in the printable recipe card at the end of this post, but the swirl has lots of little details that are too wordy for a recipe card. Here’s the long version.

Step 1: Decide If You Need Bench Flour

When the dough is done fermenting — it’s jiggly, full of bubbles, pulls away easily from the sides of the bowl, still has a domed shape, and feels super puffy when poked — take note of how tacky it is.

If it’s quite tacky or even a little sticky, lightly dust the top of your dough (or your work surface) with bench flour. If it feels drier or barely tacky, you can skip it.

Bench flour tip: Bread or all-purpose flour works great here — do not use rice flour. Rice flour can make it difficult for your dough to seal to itself. It’s good for dusting the loaf after shaping, but don’t use it during shaping.

Step 2: Stretch Your Dough Into a 15″ × 15″ Square

Turn out your dough and gently stretch it into a square, approximately 15″ × 15″.

I like to lift the dough and let gravity stretch it, then rotate the dough to the next side and repeat until it stretches a bit on each side. Then gently stretch it the rest of the way by hand.

Skip the rolling pin or any other aggressive techniques, which will deflate the dough. Some deflation can’t be helped, but we want to preserve as much of that fluffiness as we can.

Step 3: Brush Egg Wash (or Water) Over the Square

Brush egg wash (or water) over the square, leaving a 1½-inch border on the sides and top.

Keep that border completely clean — no egg wash and no swirl mixture — so the dough can seal to itself later. Otherwise, you might have sealing problems that lead to leaks (which can then burn the outside of the loaf).

The egg wash helps the dry swirl mixture stick, which reduces the risk of separation later on. The swirl adheres to the dough rather than forming a layer that unravels as you cut slices.

Prefer not to use eggs? Water works, too.

Step 4: Sprinkle the Dry Swirl Mixture Over the Egg Wash (or Water)

Sprinkle about 75% of the dry swirl mixture (about 70 g) over the egg wash.

There’s no need to mix them together — just sprinkle it on top. Use your hand to spread it evenly, and don’t be afraid to bring it all the way to the bottom edge.

Even distribution tip: I did some surface area math on this one! With a 1½-inch border, the first swirl layer covers about 160 square inches of dough. After folding, the second layer covers only about 55, roughly a third of the space. That’s why about 75% of the dry swirl mixture goes on the first layer, so both swirls come out the same thickness. It may look out of proportion, but trust me on this!

Step 5: Fold the Sides to the Center and Seal

Fold the left side of the dough to the center. Then fold the right side to the center so the two edges meet in the middle without overlapping.

Pause here to make sure the swirl mixture is sealed in. Press along the center seam, pinching the dough together if needed.

Then fold the top and bottom edges in about an inch and pinch them firmly closed. That really keeps the filling from finding a place to leak!

Step 6: Brush Egg Wash Over the Rectangle

Brush egg wash (or water) over the dough rectangle, again leaving a small border (about 1″) on the sides and top.

The top edge becomes your final seam, so keeping it clean is especially important. No border is needed on the bottom, because that edge becomes the very center of the swirl.

Step 7: Add the Final Swirl Layer

Sprinkle the rest of the swirl mixture (you should have about 24 g left) over the egg wash, using your hand to even it out and bring it all the way to the bottom edge. Keep the top and side borders clear.

Step 8: Roll the Dough Log

Now it’s time to roll up the log, which is what creates the swirl.

Starting from the bottom edge, roll the dough up snugly without stretching it enough to tear, pausing to pinch the side seams closed as you go. As you roll, pull the dough back toward you to build surface tension and maintain a snug roll.

Once the whole log is rolled, take a minute to inspect and pinch all of the seams — both ends and the long seam.

Step 9: Place in a Banneton or Loaf Pan

If you’re using a banneton and will bake in a Dutch oven: Prepare an oval banneton by placing a thin kitchen towel or cheesecloth inside and lightly flouring it (all-purpose, bread, or rice flour work here). The towel is just insurance against leaks. We’ve taken plenty of precautions to prevent them, but we don’t want any stained bannetons!

Place the dough log into the towel-lined banneton, seam-side up.

Take a moment to pinch any seams closed. If the dough keeps pulling apart, let it rest for 5–10 minutes — then come back and pinch any remaining seams closed. Dust the top with flour and cover. I like to fold the towel over the dough and cover it with a bowl cover to keep the dough from drying out in the fridge.

If you’re using a loaf pan: Line your loaf pan with parchment paper. Dust the dough log with flour; a little extra on the outside helps absorb any potential leakage. Place it in the pan seam-side down, dust the top with flour, and cover with a bowl cover or plastic wrap.

Step 10: Cold Proof

Finally, place your shaped dough in the fridge for 8–36 hours. Then pick back up with the bake instructions in the recipe card.

Now, a quick tip: if your dough didn’t feel fully proofed during shaping, let it rest on the counter for 30-60 minutes before sticking it in the fridge. The cold slows fermentation way down, so this gives the dough a little extra time to rise while it’s still warm.

I go by feel here. If the dough still seemed a bit dense during shaping, without that airy, fluffy quality, I give it more time on the counter before refrigerating.

I hope the swirl breakdown was helpful!

How to Serve Pumpkin Sourdough Bread

“The flavor of the loaf was incredible. Adding the butter mixture made it out of this world!” —Recipe tester from Wichita, Kansas

The pumpkin butter elevated this loaf so much that I can’t fathom eating it without it! It’s in the recipe card, but I’ll also add the recipe here for good measure:

• 55 g pumpkin purée
• 40 g brown sugar
• 1 tsp pumpkin pie spice blend
• 113 g (1 stick) butter (or cream cheese, but I highly recommend butter)

In a small saucepan, combine 55 g pumpkin purée, 40 g brown sugar, and 1 tsp pumpkin pie spice blend. Cook over medium heat, stirring constantly, for 3–5 minutes, until the sugar dissolves and the mixture thickens to a paste and darkens slightly. Transfer to a small bowl and let cool completely.

Whisk 113 g softened butter or softened cream cheese (your choice, or try half of each) with the cooled pumpkin paste until smooth and uniform in color. For a more whipped texture, use a hand mixer (but whisking by hand works just fine!).

“I made the pumpkin butter with half butter and half cream cheese, and MERCY, it’s so good! Just the right addition to the pumpkin loaf!” —Recipe tester from Topton, North Carolina

Store in the fridge; bring to room temperature before serving!

Storing and Reheating

Room temperature: Store the cooled loaf in a bread bag, glass cake stand, or an airtight container for up to 3 days.

• I love these bread bags from Doe a Deer — use code THATSOURDOUGHGAL for 15% off.
• These paper bread bags from Sis & Co Collective are also great for counter storage or gifting.

Freeze for longer storage: Slice the loaf and place the slices in a freezer-safe bag. They’ll keep well for up to 3 months.

Reheat from frozen: Toast slices straight from the freezer. Toasting is also the best way to enjoy this loaf after day one — it crisps up the outside and warms that spiced swirl.

Pumpkin spread: Store it in an airtight container in the fridge. Some testers found it spreadable straight from the fridge, and others preferred it at room temperature. I like to warm mine on my microwave’s soften setting and pull it out a little early so it doesn’t melt.

Troubleshooting Tips

FAQs

“The level of flavor and sweetness is exactly right for us. It is a perfect compliment to a cup of coffee or hot tea. I will be gifting loaves this holiday season!” —Recipe tester from Richmond, Virginia

Conclusion

The hardest recipes to develop are the ones I’m most proud of. It was kind of brutal partway through, but I’m so happy to finally share this pumpkin swirl sourdough bread recipe with you.

“I’ve already made this 3 times this week for friends and coworkers! Everyone loved it! And the butter spread…off the charts!” —Recipe tester from Arroyo Grande, California

If you try it, it would mean the world to me if you left a rating and review below. Upload a photo of your bake so the rest of us can celebrate with you!

And if you run into trouble, please reach out. Leave a comment below or email me at [email protected], and I’ll help you troubleshoot. This recipe was tested extensively before publishing, so when something goes wrong, the issue may be related to starter health, fermentation, or flour. Whatever it is, I’m happy to help you figure it out.

Happy baking, friends!!

Other autumn recipes you might enjoy:

• The Best Sourdough Brown Bread Recipe (Tested By 340+ Bakers)
• Cozy Pumpkin Spice & Maple Sourdough Cinnamon Rolls
• Overnight Sourdough Pumpkin Bagels (Tested by 200+ Bakers)

And if you need an EASY pumpkin sourdough recipe to make after this one, you’ve gotta try these pumpkin spice sourdough discard waffles. They taste amazing, use up lots of discard, and the batter comes together in 5–10 minutes.