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Brown Butter Chocolate Brookie

Learn how to make the ultimate brown butter brookie recipe, featuring rich chocolate brownies and chewy cookie dough baked into irresistible bars.
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Prep Time 25 minutes
Cook Time 35 minutes
2 hours
Total Time 3 hours
Course Dessert
Cuisine American
Servings 16 bars
Calories 380 kcal

Equipment

  • 9x13 inch baking pan
  • light-colored saucepan
  • large mixing bowl
  • whisk
  • medium bowl
  • oven
  • wire rack
  • measuring cups
  • measuring spoons
  • knife
  • cutting board
  • spatula

Ingredients
  

Cookie Dough

  • 1 cup unsalted butter
  • 1 cup granulated sugar
  • 1 cup light brown sugar packed
  • 2 large eggs at room temperature
  • 2 tsp vanilla extract
  • 2 cups all-purpose flour
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 1 cup semi-sweet chocolate chips

Brownie Layer

  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/2 tsp baking powder
  • 1/4 tsp salt
  • 1/2 cup unsalted butter softened
  • 3/4 cup granulated sugar
  • 1 large egg at room temperature
  • 1 tsp vanilla extract

Instructions
 

  • Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan with butter or cooking spray.
  • First, make the brown butter: Melt 1 cup of butter in a light-colored saucepan over medium heat, then continue cooking for 5-7 minutes, stirring frequently, until it turns golden brown and gives off a nutty aroma.
  • Pour the hot brown butter into a large mixing bowl and let it cool for 10 minutes, then whisk in 1 cup granulated sugar and 1 cup brown sugar until smooth. Beat in 2 eggs and 2 teaspoons vanilla until the mixture is light and fluffy.
  • In a separate medium bowl, whisk together 2 cups flour, 1 teaspoon baking soda, and 1/2 teaspoon salt. Gradually stir the dry ingredients into the butter mixture until just combined, then fold in the chocolate chips to form the cookie dough.
  • For the brownie layer, cream together 1/2 cup softened butter and 3/4 cup sugar in a medium bowl until light. Mix in 1 egg and 1 teaspoon vanilla. In another bowl, combine 1 cup flour, 1/2 cup cocoa powder, 1/2 teaspoon baking powder, and 1/4 teaspoon salt, then gradually add to the butter mixture until a thick batter forms.
  • Press two-thirds of the cookie dough evenly into the bottom of the prepared pan. Spread all of the brownie batter over the cookie layer. Drop the remaining cookie dough in small spoonfuls over the top.
  • Bake for 30-35 minutes, until the edges are set and a toothpick inserted into the center comes out with a few moist crumbs. The top should be crackled and firm to the touch.
  • Let the brookie cool completely in the pan on a wire rack for at least 2 hours before slicing into bars, which allows the layers to set for clean cuts.

Notes

Let the brookie cool completely for at least 2 hours before slicing for clean cuts.
Keyword bars, brookie, brown butter, chocolate