Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Sourdough Oatmeal Cookies

5 Stars 4 Stars 3 Stars 2 Stars 1 Star No reviews
  • Author: samahkitchen
  • Prep Time: 10 minutes
  • Cook Time: 10 minutes
  • Total Time: 50 minutes
  • Yield: 18-20 cookies 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

These Sourdough Oatmeal Cookies are soft, chewy, and slightly tangy from sourdough discard. They’re packed with hearty oats, warm spices, and optional add-ins like raisins, chocolate chips, or nuts. Perfect for a wholesome snack or dessert with a unique sourdough twist!


Ingredients

Scale

Wet Ingredients

  • 1/2 cup (120g) sourdough discard (unfed, room temperature)
  • 1/2 cup (113g) unsalted butter, softened (or coconut oil for dairy-free)
  • 1/2 cup (100g) brown sugar
  • 1/4 cup (50g) granulated sugar
  • 1 large egg (or flax egg for vegan: 1 tbsp flaxseed + 3 tbsp water)
  • 1 tsp vanilla extract

Dry Ingredients

  • 1 cup (125g) all-purpose flour (or whole wheat for a heartier texture)
  • 1/2 tsp baking soda
  • 1/2 tsp baking powder
  • 1/2 tsp salt
  • 1 tsp cinnamon
  • 1 1/2 cups (150g) rolled oats

Optional Add-ins (Choose 1 or More)

  • 1/2 cup raisins or dried cranberries
  • 1/2 cup chocolate chips
  • 1/2 cup chopped nuts (walnuts or pecans)
  • 1/4 cup shredded coconut

Instructions

Mix Wet Ingredients

  • In a large bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy.
  • Add egg, vanilla, and sourdough discard, mixing until smooth.

2. Mix Dry Ingredients

  • In a separate bowl, whisk together flour, baking soda, baking powder, salt, and cinnamon.

3. Combine & Add Oats

  • Gradually mix the dry ingredients into the wet ingredients until just combined.
  • Stir in oats and any optional add-ins.

4. Chill the Dough (Optional but Recommended for Best Texture)

  • Cover and refrigerate the dough for 30 minutes to 1 hour.

5. Bake the Cookies

  • Preheat oven to 350°F (175°C).
  • Line a baking sheet with parchment paper.
  • Scoop 1½ tbsp portions of dough onto the sheet, spacing them 2 inches apart.
  • Bake for 10-12 minutes, or until the edges are golden but the centers are soft.

6. Cool & Enjoy

  • Let cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack.

Notes

  • For a Chewier Cookie: Use quick oats instead of rolled oats.
  • For a Crispier Cookie: Flatten the dough slightly before baking and bake for 12-14 minutes.
  • Storage: Store in an airtight container at room temperature for 3-4 days or freeze for up to 3 months.