Go Back
+ servings
Print Recipe
4.91 from 22 votes

Sourdough Brownies

Sourdough brownies use a sourdough starter to add a little tanginess to every chocolatey bite!
Prep Time10 minutes
Cook Time28 minutes
Total Time38 minutes
Course: Dessert
Cuisine: American
Keyword: Easy Sourdough Brownies
Servings: 9
Calories: 264kcal
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


  • Preheat oven to 350°F and prepare a 9x9 pan with non-stick spray or parchment paper.
  • Roughly chop the chocolate and place into a bowl.
  • 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.
  • Add sugar to the chocolate and butter. Stir well.
  • Add in vanilla, eggs, and pinch of salt. Stir until well incorporated.
  • Add sourdough starter and stir by hand until smooth.
  • 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!)


Calories: 264kcal