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Sourdough Discard Brownies

Comforting, fudgy brownies made with sourdough discard, perfect for any occasion from game nights to family desserts.
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Prep Time 15 minutes
Cook Time 28 minutes
Total Time 40 minutes
Servings: 16 pieces
Course: Dessert, Snack
Cuisine: American
Calories: 150
Ingredients Method Notes

Ingredients
  

Wet Ingredients
  • 1 cup sourdough starter discard (active or unfed) Adds tang and depth without changing texture.
  • 1 cup granulated sugar Balances the tang and creates that shiny, crackly top.
  • 1/2 cup brown sugar For moisture and caramel notes; substitute coconut sugar for a healthier option.
  • 3/4 cup unsalted butter, melted You can use coconut oil for dairy-free.
  • 2 large eggs, room temperature Binders that help create fudgy crumb.
  • 1 teaspoon vanilla extract Brightens the chocolate and discard.
Dry Ingredients
  • 3/4 cup all-purpose flour Swap half for whole wheat for a nuttier, healthier option.
  • 1/2 cup unsweetened cocoa powder Use Dutch-processed for deeper chocolate flavor.
  • 1/2 teaspoon baking powder For a gentle lift.
  • 1/2 teaspoon fine salt Enhances all flavors.
  • 3/4 cup chocolate chips or chopped dark chocolate Melty pockets of joy; try white chocolate for a twist.

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C). Line an 8×8-inch pan with parchment paper, leaving a bit of overhang for easy removal.
  2. In a large bowl, whisk together melted butter, granulated and brown sugars until glossy. Add eggs, one at a time, beating until the mixture looks slightly pale. Stir in vanilla and the sourdough discard—your batter will smell slightly tangy and rich.
  3. Sift in cocoa powder, flour, baking powder, and salt. Fold gently until just combined; the batter should be thick and glossy. Stir in chocolate chips so they nestle like tiny treasure pockets.
Baking
  1. Spread batter evenly into the prepared pan. Slide into the oven and bake for 22–28 minutes. When you open the oven door, your kitchen will smell like a cozy bakery.
  2. Check that edges are set while the center still jiggles slightly. Let brownies cool completely in the pan on a wire rack.
  3. Use the parchment overhang to lift out and cut into squares.

Notes

Store cooled brownies in an airtight container at room temperature for up to 3 days. For longer life, refrigerate up to a week or freeze individual squares wrapped tightly in plastic and foil for up to 3 months.