Brookies

4.92 from 12 votes

These brookies are fudgy brownie cookie bars. They have a fudgy brownie layer and a brown butter chocolate chip cookie layer.

Prep Time45

Cook Time40

Total Time1 25

Servings: bars

Calories: 358kcal

Place butter in a frying pan over medium heat. Stir constantly. Stir until the butter foams and the milk deposits separate. It will turn amber quickly. Take off heat and let it cool completely.
½ cup Unsalted butter
Cool the brown butter for at least 30 minutes until room temperature.
Preheat oven to 325F. Spray a 9X9 pan with baking non-stick spray. Line the bottom and 2 sides of the pan with parchment paper. Spray again.
In a mixing bowl, mix the flour, baking soda and salt. Set aside.
1 ¼ cup All-purpose flour, ½ teaspoon Baking soda, ½ teaspoon Salt
In a separate mixing bowl using a mixer, mix the brown butter, brown sugar, and sugar on high speed for 2 minutes. Add in vanilla and egg and egg yolk. Mix on medium until combined and smooth.
½ cup Brown sugar, ¼ cup White granulated sugar, 1 teaspoon Pure vanilla extract, 1 Large egg, 1 Egg yolk
Add in the dry ingredients. Mix on low speed until just combined. Add in the chocolate chips. Set aside.
¾ cup Semi-sweet chocolate chips

In a mixing bowl, sift the flour, cocoa powder, cornstarch, and salt. Set aside.
½ cup All-purpose flour, ½ cup Dutch process cocoa powder, 1 tablespoon Cornstarch, ½ teaspoon Salt
Using a mixer with a whisk attachment, combine sugar, powdered sugar, and eggs. Beat on high for 1 minute.
¾ cup White granulated sugar, ¼ cup Powdered sugar, 2 Large eggs
Add in melted butter, oil, and vanilla. Mix on low until just combined. Add in the dry ingredients. Mix on low until just combined. Scrape the bowl. Mix lightly with a rubber spatula. Add in the chocolate chips.
¼ cup Oil, 4 tablespoon Unsalted butter, 1 teaspoon Pure vanilla extract, 1 cup Semi-sweet chocolate chips
Pour brownie batter in the pan. Spread evenly.
Flatten cookie dough into small discs. Place on top of the brownie batter. Bake for 30-38
Let it cool completely before removing from the pan and serving.

Flour- Make sure the flour is spooned and leveled or use a kitchen scale. Compacted flour can dry out the brownies.

High altitude baking- Add an extra ½ tablespoon of flour to brownies. Add ½ tablespoon to cookie dough.