Crispy Sourdough Sweet Potato Waffles

These Sourdough Sweet Potato Waffles are a warm, flavorful, and easy breakfast recipe made with creamy sweet potato purée and sourdough discard. The sweet potato gives the waffles a beautiful golden-orange color, a naturally sweet flavor, and a tender texture, while the sourdough discard adds a gentle tang and helps reduce waste in your kitchen. Best of all, this recipe does not require any rise time, so you can have fresh homemade waffles ready in about 30 minutes.

Syrup pouring onto a stack of Sourdough Sweet Potato Waffles.

Why You’ll Love This Recipe

  • These Sourdough Sweet Potato Waffles are lightly sweet, cozy, and family-friendly. They work well for breakfast, brunch, or a relaxed weekend meal.
  • The recipe is quick and simple. Since the sourdough discard is not used for rising, there is no waiting period or overnight fermentation required.
  • You can make these waffles in under 30 minutes, making them practical for busy mornings when you still want something homemade.
  • Waffles freeze well, so you can enjoy a fresh batch now and save extras for another day.
  • This recipe uses sourdough discard, but active sourdough starter can also be used as a 1:1 replacement if that is what you have available.
  • Sweet potato adds natural sweetness, color, and flavor, along with the nutritional benefits sweet potatoes are known for.
  • Serve these waffles with butter, toasted pecans or walnuts, maple syrup, or any of your favorite waffle toppings.

Ingredients

You only need a handful of everyday ingredients to make these sourdough discard sweet potato waffles. The combination of sweet potato, cinnamon, nutmeg, and sourdough gives the waffles a comforting flavor without making them overly sweet.

Ingredients for Sourdough Sweet Potato Waffles in small bowls.
  • Sourdough discard: Use unfed sourdough discard at room temperature. Active sourdough starter can also be used in the same amount, although it is not needed for leavening in this recipe.
  • Sweet potato: Mashed or puréed sweet potato works well. It does not need to be perfectly smooth; a little texture is fine and gives the waffles a homemade feel.
  • Eggs and milk: These help create a soft, rich batter. You can use regular dairy milk or a non-dairy milk.
  • Butter and oil: The combination adds moisture and helps create tender waffles with a golden exterior.
  • Flour, baking powder, salt, cinnamon, and nutmeg: These dry ingredients give the waffles structure, lift, and warm spice flavor.

See the recipe card below for exact measurements and full directions.

Substitutions & Variations

This sourdough sweet potato waffle recipe is flexible and easy to adapt based on what you have in your kitchen.

  • Use active sourdough starter: Replace the sourdough discard with active sourdough starter in a 1:1 swap. The waffles will still rely on baking powder for lift.
  • Try another purée: Pumpkin purée or butternut squash purée can be used instead of sweet potato purée. Keep in mind that these options are usually less sweet than sweet potato.
  • Make them extra cozy: If you enjoy warm spice flavors, the cinnamon and nutmeg already give these waffles a classic breakfast flavor that pairs well with maple syrup.
  • Serve them your way: Add butter, toasted nuts, maple syrup, or your preferred waffle toppings just before serving.

How to Make Sourdough Sweet Potato Waffles

These waffles come together in a few simple steps. Mix the wet ingredients, whisk the dry ingredients, combine the batter, and cook until golden brown. The full recipe with exact quantities is included in the recipe card below.

Wet ingredients for Sourdough Sweet Potato Waffles in a bowl with a whisk.
  1. Step 1: Whisk together the wet ingredients, including the sugars, sweet potato purée, and sourdough discard, until well combined.
Dry ingredients mixed together in a white bowl.
  1. Step 2: In a separate bowl, whisk together the flour, baking powder, salt, cinnamon, and nutmeg.
Batter for Sourdough Sweet Potato Waffles in a large bowl.
  1. Step 3: Pour the wet ingredients into the dry ingredients and stir until the batter is combined. A few small lumps are fine.
Waffle batter being poured into a waffle iron.
  1. Step 4: Grease your waffle iron and add about ⅓ cup of batter per waffle, depending on the size of your waffle maker.
Wafles after baking in the waffle iron.
  1. Step 5: Cook the waffles until they are golden brown and crisp on the outside.
A pile of Sourdough Sweet Potato Waffles on a white tray.
  1. Step 6: Serve warm with butter, toasted pecans, maple syrup, or your favorite toppings.

Expert Baking Tips

  • Make the sweet potato purée first. Steaming sweet potatoes takes about 20 minutes, while baking takes about 60 minutes.
  • Mashed or puréed sweet potato both work. The sweet potato does not need to be completely smooth.
  • Measure the batter based on your waffle iron. Most waffle irons will use about ⅓ cup of batter per waffle.
  • Serve immediately for the best texture. Fresh waffles are crispest right after cooking.
  • Use your favorite toppings. Butter, maple syrup, toasted pecans, and walnuts all pair beautifully with the sweet potato and sourdough flavor.
Sweet potato purée in a white bowl.

How to Make Sweet Potato Purée

You can make sweet potato purée by steaming or baking the potatoes. Both methods work well for this recipe.

  • Steamed sweet potatoes: Peel and chop the sweet potatoes into 1- to 2-inch chunks. Steam them in a steamer basket over boiling water for 15–20 minutes, or until fork-tender and very soft.
    • Let the sweet potatoes cool slightly, then mash with a fork until mostly smooth. You can also purée them in a food processor or blender.
    • Steaming is the faster method and works especially well when you want to make the waffles quickly.
  • Baked sweet potatoes: Preheat the oven to 400 degrees F. Wash the sweet potatoes, poke holes in them with a fork, wrap them in aluminum foil, and bake for about 60 minutes, or until fork-tender.
    • Let the potatoes cool, then remove the skins with your hands or a spoon. Mash with a fork until mostly smooth, or purée in a food processor or blender.

Storage

Refrigerator Storage: If you plan to eat the waffles within 1–2 days, store them in an airtight container in the refrigerator. Reheat them in the microwave for about 30 seconds, or use a toaster for a crispier exterior.

Freezer Storage: Let the waffles cool completely, then place them in an airtight container or freezer-safe plastic bags. Freeze for up to 3 months. Because waffles may stick together, it is best to freeze individual servings of 1–2 waffles in smaller bags.

To reheat frozen waffles, let them thaw to room temperature, then warm them in the microwave for about 30 seconds or toast them for a crispier finish.

A closeup of a Sourdough Sweet Potato Waffle on a white tray.

Recipe FAQs

How do you make sweet potato purée?

You can steam or bake the sweet potatoes. To steam them, peel and chop the potatoes into 1- to 2-inch chunks, then steam for 15–20 minutes until very soft. Let them cool slightly and mash with a fork or purée in a food processor or blender. To bake them, cook whole sweet potatoes at 400 degrees F for about 60 minutes, then cool, remove the skins, and mash or purée.

Can I use active sourdough starter to make Sourdough Sweet Potato Waffles?

Yes. You can replace the sourdough discard with active sourdough starter in the same amount. The starter is not required for rising in this recipe because the waffles use baking powder for lift.

More Sourdough Discard Breakfast Recipes

  • Sourdough Discard Waffles
  • Sourdough Discard Pumpkin Cinnamon Rolls
  • Sourdough Discard Pumpkin Muffins
  • Sourdough Zucchini Waffles

If you try these Sourdough Sweet Potato Waffles, leave a star rating and share how they turned out in the comments. Happy baking!

Syrup pouring onto a stack of Sourdough Sweet Potato Waffles.

Sourdough Sweet Potato Waffles

Jessica Vogl

Soft, golden Sourdough Sweet Potato Waffles made with sweet potato purée, warm spices, and sourdough discard for a flavorful homemade breakfast.
5 from 1 vote
Prep Time 15 mins
Cook Time 15 mins
Total Time 30 mins
Course Breakfast, Brunch
Cuisine American
Servings 5
Calories 535 kcal

Equipment

  • Kitchen scale
  • Waffle iron
  • Cooling rack

Ingredients

  • 2 eggs lightly beaten
  • 1 cup milk non-dairy or regular dairy
  • ¼ cup vegetable or canola oil
  • 2 Tablespoons granulated sugar
  • 2 Tablespoons brown sugar packed
  • 1 cup sweet potato purée
  • 200 grams, about ¾ cup sourdough discard unfed, at room temperature
  • 6 Tablespoons unsalted butter melted
  • 1 ½ cups all-purpose flour
  • 2 teaspoons baking powder
  • 1 teaspoon kosher salt
  • 2 teaspoons ground cinnamon
  • ¼ teaspoon ground nutmeg

Instructions

  • In a large bowl, whisk the eggs until beaten. Add the milk and vegetable oil, then whisk to combine. Add the granulated sugar, brown sugar, sweet potato purée, and sourdough discard. Whisk until fully incorporated, then stir in the melted butter.
  • In a separate large bowl, whisk together the flour, baking powder, salt, cinnamon, and nutmeg. Pour the wet mixture into the dry ingredients and stir until combined. The batter may be slightly lumpy if you used mashed sweet potato.
  • Heat the waffle iron and grease it with butter or cooking spray. Add about ⅓ cup of batter per waffle and cook until golden brown. Serve immediately with your favorite toppings.

Notes

Serving size: 2 waffles.
Substitutions: Pumpkin purée or butternut squash purée can be used instead of sweet potato purée, though they will not be as sweet.
Active starter option: To make these waffles with active sourdough starter, use 200 grams in place of the sourdough discard.

Nutrition

Calories: 535kcal
Carbohydrates: 61g
Protein: 10g
Fat: 28g
Fiber: 4g
Sugar: 16g