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Brown butter brookies with fudgy brownie layer and chewy chocolate chip cookie base stacked golden edges melty chocolate chips flaky sea salt

Brown butter brookies

Fudgy brownies and chewy brown butter cookies baked together in one pan for a rich, chocolatey dessert with deep flavor and soft texture.
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Prep Time 25 minutes
Cook Time 30 minutes
Total Time 55 minutes
Servings: 9 bars
Course: Dessert
Cuisine: American
Calories: 310
Ingredients Equipment Method Notes

Ingredients
  

  • 1/2 cup unsalted butter for cookie layer
  • 1/2 cup packed brown sugar for cookie layer
  • 1/4 cup granulated sugar for cookie layer
  • 1 large egg for cookie layer
  • 1 tsp vanilla extract for cookie layer
  • 1 cup all-purpose flour for cookie layer
  • 1/2 tsp baking soda for cookie layer
  • 1/2 tsp salt for cookie layer
  • 3/4 cup chocolate chips for cookie layer
  • 1/2 cup unsalted butter for brownie layer
  • 1/2 cup semisweet chocolate chips for brownie layer
  • 1/2 cup granulated sugar for brownie layer
  • 1/4 cup brown sugar for brownie layer
  • 2 large eggs for brownie layer
  • 1 tsp vanilla extract for brownie layer
  • 1/2 cup all-purpose flour for brownie layer
  • 1/4 cup cocoa powder for brownie layer
  • 1/4 tsp salt for brownie layer

Equipment

  • Mixing Bowl
  • 8x8 Baking Pan
  • Whisk

Method
 

  1. Brown the butter for the cookie layer, then mix the dough.
  2. Make the brownie batter in a separate bowl.
  3. Layer the brownie batter and cookie dough in the pan.
  4. Bake until the center is just set, then cool completely.

Notes

  • Cool the brown butter slightly before mixing.
  • Do not overbake, the center should stay soft.
  • Chill the cookie dough briefly if you want cleaner layers.
  • Store in an airtight container for up to 5 days.