Sourdough Discard Donut Recipe

Oh, these donuts! There’s something so incredibly comforting about a homemade donut, especially one with a little sourdough magic. I remember the first time I made these Sourdough Discard Donut Recipe, I was a bit intimidated by frying, but the moment I took that first bite – warm, fluffy, and perfectly sweet – I knew I had found a new favorite. They just have this amazing texture and a subtle tang that makes them so much more interesting than your average donut. It’s a true labor of love, but so worth it!

Why You’ll Love This Sourdough Discard Donut Recipe

• These donuts are incredibly light and fluffy, thanks to a special technique called Tangzhong.
• You get to use up your sourdough discard, which is always a win in my book!
• They have a subtly complex flavor – a little sweet, a little tangy, and totally addictive.
• Perfect for a special weekend breakfast, brunch, or an afternoon treat.

Ingredients You’ll Need

• Tangzhong: This is a mixture of milk and bread flour cooked into a paste. It’s the secret to those super soft, pillowy donuts! Don’t skip this step.
• Bread Flour: Higher protein content in bread flour gives your donuts a better structure and chew. All-purpose flour can work in a pinch, but the texture might be slightly different.
• Instant Yeast: This works alongside your sourdough discard to give the donuts a beautiful rise. Make sure it’s fresh!
• Sourdough Discard: This is the star! Use unfed sourdough discard straight from your fridge. It adds a wonderful depth of flavor without making the donuts taste “sour.”
• Unsalted Butter: Room temperature butter incorporates more smoothly into the dough, leading to a tender crumb.
• Vanilla Paste or Extract: Vanilla paste gives a richer, more pronounced vanilla flavor, but extract works beautifully too.

How to Make Sourdough Discard Donut Recipe Step by Step

First things first, you’ll start with the Tangzhong. This is a simple little trick that makes all the difference! You just whisk milk and bread flour together in a small saucepan over medium heat until it thickens into a paste. Keep whisking, and once it’s thick, take it off the heat and let it cool completely. You can spread it on a plate and pop it in the fridge for a few minutes to speed things up. This step is crucial for that amazing soft texture!

Once your Tangzhong is cool, it’s time for the main dough. Grab your stand mixer (or get ready for a good arm workout by hand!). Add the cooled Tangzhong and all the other dough ingredients, except the butter, into the bowl. Mix on low for about two minutes until everything comes together into a stiff, thick dough. Then, you’ll add the room temperature butter, one piece at a time, letting each bit fully incorporate before adding the next. This step makes the dough incredibly rich and tender.

After all the butter is in, crank up the mixer to medium speed and knead for a good 10-15 minutes. You’re looking for a dough that’s smooth, elastic, and passes the windowpane test – meaning you can stretch a small piece thin enough to see light through it without it tearing. Don’t worry if it takes a bit of time, this is where the magic happens and develops that lovely donut structure! After kneading, let your dough rise in a lightly greased bowl until it doubles in size, which usually takes about 45 minutes at 70°F.

Once risen, gently turn your dough out onto a lightly floured surface and roll it to about ½ to ¾ inch thick. Now for the fun part – cutting out your donuts! I love using a donut cutter, but you can use two different-sized round cutters if you don’t have one. Try to get as many donuts as you can on the first pass. You can re-roll the scraps, but give them about 30 minutes to relax before doing so; this helps prevent tough donuts. Place your cut donuts on individual squares of parchment paper on a baking sheet, cover them, and let them rise again until they’re doubled, puffy, and jiggle when shaken – this second rise is super important for light donuts! This usually takes 45-65 minutes at 70°F, or you can do a slow overnight rise in the fridge.

While your donuts are finishing their second rise, heat about 2 inches of oil in a heavy-bottomed pot or cast iron skillet to 360°F. This is where a frying thermometer comes in handy! Once the donuts are ready, carefully place 2-3 at a time into the hot oil, parchment paper and all. Use tongs to remove the parchment after about 10 seconds. Fry each donut for a total of 2 ½ minutes, flipping halfway through until they’re golden brown. Make sure the oil temperature comes back up to 360°F before frying the next batch! Drain them on a wire rack while you whisk together powdered sugar, hot water, vanilla, and a pinch of salt for the glaze. Dip each side of the warm donuts in the glaze, let the excess drip off, and place them back on the rack to set for about an hour. And then, enjoy your delicious creations!

My Top Tips for Success

• I always make sure my Tangzhong is completely cool before adding it to the dough. Warm Tangzhong can mess with the yeast.
• In my experience, kneading until the dough passes the windowpane test is non-negotiable for truly light and airy donuts. Don’t rush it!
• Trust me on this one: don’t overcrowd the pot when frying. Fry only 2-3 donuts at a time to keep the oil temperature consistent.
• Don’t skip the second rise! Underproofed dough leads to dense, bread-like donuts. Wait until they are super light and puffy.
• For the best flavor, use good quality vanilla paste or extract in your glaze.

Common Mistakes to Avoid

• Not cooling the Tangzhong: This can kill your yeast and result in a dense dough. Ensure it’s room temperature or cooler.
• Under-kneading the dough: The dough needs proper gluten development to be light and airy. Knead until it’s smooth, elastic, and passes the windowpane test.
• Frying in oil that’s too hot or too cold: Too hot and the outside burns before the inside cooks; too cold and the donuts absorb too much oil and become greasy. Use a thermometer!
• Rushing the second rise: This is critical for light, fluffy donuts. Give them ample time to become puffy and marshmallow-like.
• Overcrowding the frying oil: This drops the oil temperature too much, leading to greasy donuts. Fry in small batches.

How to Store Sourdough Discard Donut Recipe

• Room Temperature: 1-2 days in an airtight container. They are best enjoyed fresh!
• Refrigerated: Not recommended as they can dry out quickly.
• Freezing: You can freeze unglazed donuts for up to 1 month. Thaw at room temperature, then glaze and serve.

Frequently Asked Questions

What is sourdough discard?

Sourdough discard is the portion of your sourdough starter that you remove before feeding it. It’s not active enough to leaven bread on its own, but it adds incredible flavor and moisture to baked goods like these donuts.

Can I make these donuts without a stand mixer?

Yes, you can! You’ll need to knead the dough by hand for a bit longer, likely around 15-20 minutes, until it passes the windowpane test. It’s a great arm workout!

What if I don’t have a donut cutter?

No problem! You can use two round cookie cutters – one larger for the donut shape and a smaller one for the hole. Or, you can make them into donut holes entirely!

Can I bake these donuts instead of frying them?

This recipe is specifically designed for fried donuts to achieve that classic texture. Baking them would result in a different, more bread-like consistency. For a baked option, you might enjoy my Maple Donut Bars From Scratch.

How do I know if my oil is at the right temperature?

The best way is to use a deep-fry thermometer. It’s really important to maintain the oil at 360°F for perfect donuts. If you don’t have one, you can test with a small piece of dough; it should sizzle and float to the top within a few seconds.

I hope you give this Sourdough Discard Donut Recipe a try! There’s nothing quite like the taste of a warm, homemade donut, and these are truly special. Happy baking, and I’d love to hear how yours turn out!

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