Go Back

Sourdough Brownies

Sourdough brownies use a sourdough starter to add a little tanginess to every chocolatey bite!

Course Dessert
Cuisine American
Keyword Easy Sourdough Brownies
Prep Time 10 minutes
Cook Time 28 minutes
Total Time 38 minutes
Servings 9
Calories 264 kcal
Author Amanda Rettke-iambaker.net


  • 4 ounces semi-sweet chocolate
  • 1/2 cup (1 stick or 113g) unsalted butter
  • 1 cup (200g) granulated sugar
  • 1 teaspoon vanilla
  • 2 large eggs, room temperature
  • 1 pinch salt
  • 3/4 cup sourdough starter


  1. Preheat oven to 350°F and prepare a 9x9 pan with non-stick spray or parchment paper.
  2. Roughly chop the chocolate and place into a bowl.
  3. Slice the butter into smaller pieces and add to the chocolate. Microwave for 1 minute. Stir well and then microwave for another 30 seconds. Stir again and stir until all pieces are melted and the butter is incorporated.
  4. Add sugar to the chocolate and butter. Stir well.
  5. Add in vanilla, eggs, and pinch of salt. Stir until well incorporated.
  6. Add sourdough starter and stir by hand until smooth.

  7. Pour brownie batter into prepared pan and bake for 25-28 minutes or until an inserted toothpick is removed with a few crumbs but no wet batter. Do not overbake. (Every oven is different so start checking at 22 minutes just in case!)