Sourdough discard waffles are golden, crisp-edged waffles made with unfed starter, flour, milk, eggs, and butter. Baking powder and baking soda give the batter lift without a long fermentation, while the discard adds a mild tang that pairs well with sweet or savory toppings.
Ingredients
- 1 cup (240 g) sourdough discard: This recipe assumes a 100% hydration starter, meaning it contains equal weights of flour and water. Cold or room-temperature discard both work; unfed discard is fine.
- 1½ cups (180 g) all-purpose flour: Spoon the flour into the measuring cup and level it, or weigh it for the most consistent batter.
- ¾ cup (180 ml) milk: Whole or 2% milk makes a tender waffle. Start with this amount and add a spoonful more only if the batter seems unusually stiff.
- 2 large eggs (about 100 g without shells): Bring them to room temperature if convenient; cold eggs still work, but can make melted butter firm up in the batter.
- 4 tablespoons (57 g) unsalted butter, melted and cooled slightly: The butter adds flavor and helps the waffles brown. If using salted butter, reduce the added salt slightly.
- 2 tablespoons (25 g) granulated sugar: A small amount encourages browning without making the waffles dessert-sweet.
- 2 teaspoons (8 g) baking powder: This supplies most of the lift, so measure it accurately and check that it is fresh.
- ½ teaspoon (2.3 g) baking soda: It reacts with the sourdough’s acidity and helps the waffles brown. Do not increase it, or the waffles may taste soapy.
- ½ teaspoon (3 g) fine salt: Salt balances the starter’s tang and brings out the buttery flavor.
- 1 teaspoon (5 ml) vanilla extract, optional: Add it for a warm, lightly sweet aroma, especially if serving the waffles with fruit or syrup.
Instructions
- Preheat the waffle iron. Set the iron to medium or medium-high, following its maker’s directions, and allow about 5–8 minutes for it to heat. A properly heated iron helps the outside crisp before the inside dries out. Lightly grease the plates if your iron is not reliably nonstick.
- Mix the dry ingredients. In a large bowl, whisk together the flour, sugar, baking powder, baking soda, and salt. Whisking spreads the leaveners evenly, so one waffle is not bitter or overly airy while another turns out dense.
- Combine the wet ingredients. In a second bowl, whisk the sourdough discard, milk, eggs, melted butter, and vanilla if using. If the discard is very cold, whisk it with the milk first, then drizzle in the butter while whisking so the butter stays fluid rather than forming little flecks.
- Make the batter. Pour the wet mixture into the dry ingredients. Fold or stir gently just until no large patches of dry flour remain. A few small lumps are normal; beating the batter smooth can make the waffles tougher. The batter should be thick but pourable. If yours is almost dough-like, stir in milk 1 tablespoon (15 ml) at a time.
- Cook the first waffle. Pour enough batter onto the hot iron to cover the center without filling the plates to the edges; the amount varies by machine, so follow its fill line if it has one. Close the lid and cook until the waffle is deeply golden and the steam coming from the iron has slowed, usually about 4–5 minutes. Avoid opening the iron early, since a waffle that has not set can split or stick.
- Finish the batch. Transfer each waffle to a wire rack rather than stacking it on a plate. Cook the remaining batter in the same way, greasing the iron between waffles only if needed. A typical batch makes about 4 standard waffles, though the number depends on the size and style of your iron. The waffles should be browned, crisp at the edges, and cooked through; if checking an egg dish with a food thermometer, the center should reach 160°F (71°C), the USDA FSIS safe minimum for egg dishes.
- Serve while hot. Bring the waffles to the table as they finish, or keep them in a single layer on a rack in a warm oven while you cook the rest. Do not cover them tightly, because trapped steam softens their crisp surfaces.
Tips
- Know your starter’s consistency. The listed milk amount suits discard made with equal weights flour and water. A very thick starter may need an extra tablespoon or two of milk; a thin, pourable starter may need a little less. Adjust gradually so the batter remains thick and spoonable rather than runny.
- Measure flour lightly. Scooping straight from the bag can pack in too much flour and make the batter stiff. Fluff it first, spoon it into the cup, and level the top, or use the metric weight for repeatable results.
- Keep cooked waffles crisp. Set finished waffles directly on a wire rack. If you need to hold them, arrange them in one layer in a 200°F (95°C) oven; stacking or covering them traps steam and softens the edges.
- Use discard that smells pleasantly sour. A sharp, tangy smell is normal, but discard with visible mold or pink, orange, or otherwise unusual discoloration should be thrown away. This recipe uses discard as an ingredient, not as a substitute for the measured flour or leavening.
Serving Suggestions
For a classic breakfast, serve the waffles with butter and warm maple syrup. Fresh berries, sliced peaches, banana, or stewed apples add fruit and contrast with the starter’s gentle tang; a spoonful of yogurt or whipped cream makes the plate richer. Toasted pecans or walnuts add crunch, while a little lemon zest can brighten a fruit topping.
These waffles also work well with savory toppings. Try a fried or scrambled egg, sautéed mushrooms, sliced avocado, or sharp cheddar with herbs. For a brunch spread, serve a stack alongside fruit and bacon or breakfast sausage, keeping the toppings separate so each person can make a sweet or savory plate. Add toppings just before eating, since syrup and juicy fruit soften the crisp surface if left on too long.
Variations
Buttermilk-style tang: Replace the milk with ¾ cup (180 ml) buttermilk. The result tastes a little more tangy and may brown slightly faster, so check the first waffle early. Keep the baking soda amount the same.
Whole-wheat waffles: Replace up to ½ cup (60 g) of the all-purpose flour with whole-wheat flour. The waffles will be heartier and a little less delicate. If the batter thickens as it sits, loosen it with milk 1 tablespoon (15 ml) at a time.
Cinnamon and fruit: Add ½ teaspoon (1.3 g) ground cinnamon to the dry mixture. You can fold in ½ cup (75 g) blueberries or finely diced apple just before cooking, but avoid overfilling the iron; fruit can release moisture and make the waffles softer.
Dairy-free option: Use an unsweetened, unflavored plant milk in place of dairy milk and a neutral oil or melted dairy-free baking stick in place of butter, using the same amounts. The flavor will be less buttery, and some plant milks brown differently, so use the iron’s color and steam cues rather than relying only on the clock.
Less sweet batter: The sugar can be reduced to 1 tablespoon (12 g) or omitted if you plan savory toppings. The waffles may brown more slowly and taste less rounded, but the leavening does not depend on the sugar.
Storage and Reheating
Let leftover waffles cool on a rack, then refrigerate them in an airtight container within 2 hours of cooking. They keep for 3–4 days in the refrigerator. Separate layers with parchment if you want to prevent sticking, and avoid sealing them while still warm because condensation makes the surfaces soggy.
To freeze, cool the waffles completely, place them in a single layer on a tray until firm, then transfer them to a freezer-safe bag or container with parchment between layers. For best texture, use within 2 months. Reheat refrigerated or frozen waffles in a toaster or toaster oven until hot and crisp; frozen waffles can go straight into the toaster if the slots accommodate them. An oven set to 350°F (175°C) also works: place waffles on a rack or baking sheet and warm until crisp, usually about 5–8 minutes from the refrigerator or 8–12 minutes from frozen. Avoid the microwave if crispness matters, as it tends to soften them.
Frequently Asked Questions
Can I use sourdough discard straight from the refrigerator?
Yes. Cold discard works, though it can make the melted butter firm into small pieces when combined. Whisk the discard with the milk first, then gradually whisk in the butter. The batter may take a little longer to cook if the iron loses heat when cold batter is added.
Does the discard need to be fed or bubbly?
No. Unfed discard is the point of this recipe, and it does not need to be bubbly because baking powder and baking soda provide the lift. Discard that has been stored safely in the refrigerator and still looks and smells normal is suitable. Do not use discard with mold or unusual colored streaks.
Can I make the batter ahead?
For the most reliable lift, mix the batter shortly before cooking. Once the wet ingredients meet the baking soda and baking powder, the leaveners begin working, so a long wait can make the waffles less airy. You can measure the dry ingredients and wet ingredients into separate covered containers the night before, refrigerate the wet mixture, then combine them just before heating the waffles.
Why are my sourdough waffles dense or soft?
Dense waffles often come from too much flour, old baking powder, overmixing, or batter that sat for a long time after mixing. Soft waffles usually need more time in the iron, or they were stacked while hot. Weighing the flour, mixing only until combined, and cooling each waffle on a rack help address both problems.
Can I make these without eggs?
Eggs give the batter structure and help it brown, so an egg-free version will have a different texture. A commercial egg replacer can work if used according to its package directions, but the results vary. For a first attempt, replace the two eggs with the amount specified for two eggs on the product label and cook one test waffle before making the rest.
Can I double the recipe?
Yes. Double each ingredient and mix in a large bowl, taking care not to overmix. Cook in batches and keep finished waffles on a rack in a 200°F (95°C) oven. If the batter thickens while waiting, stir in a small splash of milk; do not add extra baking powder or soda to compensate.
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