1Preheat oven to 350°F and line an 8x8 inch pan with parchment paper.
2Preheat oven to 350°F and line an 8x8 inch pan with parchment paper.
3Preheat oven to 350°F and line an 8x8 inch pan with parchment paper.
4Prepare the cookie layer by mixing flour, baking soda, and salt.
5Prepare the cookie layer by mixing flour, baking soda, and salt.
6Prepare the cookie layer by mixing flour, baking soda, and salt.
7Combine melted butter, brown and granulated sugar, egg, and vanilla; whisk until smooth and fluffy for 2-3 minutes.
8Combine melted butter, brown and granulated sugar, egg, and vanilla; whisk until smooth and fluffy for 2-3 minutes.
9Combine melted butter, brown and granulated sugar, egg, and vanilla; whisk until smooth and fluffy for 2-3 minutes.
10Add dry ingredients and chocolate chips to the cookie mixture; mix until just combined.
11Add dry ingredients and chocolate chips to the cookie mixture; mix until just combined.
12Add dry ingredients and chocolate chips to the cookie mixture; mix until just combined.
13Prepare the brownie layer: Melt butter in a saucepan over medium-low heat, stirring every 10 seconds until foamy (6-8 minutes), and continue until milk solids turn golden brown and smell nutty.
14Prepare the brownie layer: Melt butter in a saucepan over medium-low heat, stirring every 10 seconds until foamy (6-8 minutes), and continue until milk solids turn golden brown and smell nutty.
15Prepare the brownie layer: Melt butter in a saucepan over medium-low heat, stirring every 10 seconds until foamy (6-8 minutes), and continue until milk solids turn golden brown and smell nutty.
16Transfer the browned butter to a heatproof bowl, then add cocoa powder, oil, vanilla, and chopped chocolate; mix until smooth.
17Transfer the browned butter to a heatproof bowl, then add cocoa powder, oil, vanilla, and chopped chocolate; mix until smooth.
18Transfer the browned butter to a heatproof bowl, then add cocoa powder, oil, vanilla, and chopped chocolate; mix until smooth.
19In a separate bowl, whisk 3 eggs and light brown sugar for 5-6 minutes until dissolved.
20In a separate bowl, whisk 3 eggs and light brown sugar for 5-6 minutes until dissolved.
21In a separate bowl, whisk 3 eggs and light brown sugar for 5-6 minutes until dissolved.
22Add powdered sugar to the egg mixture; mix for 1-2 minutes until combined.
23Add powdered sugar to the egg mixture; mix for 1-2 minutes until combined.
24Add powdered sugar to the egg mixture; mix for 1-2 minutes until combined.
25Add the cooled browned butter mixture to the egg mixture; mix until smooth.
26Add the cooled browned butter mixture to the egg mixture; mix until smooth.
27Add the cooled browned butter mixture to the egg mixture; mix until smooth.
28Add flour and chocolate chips to the brownie batter; mix until well combined.
29Add flour and chocolate chips to the brownie batter; mix until well combined.
30Add flour and chocolate chips to the brownie batter; mix until well combined.
31Layer the cookie and brownie batters in the prepared pan.
32Layer the cookie and brownie batters in the prepared pan.
33Layer the cookie and brownie batters in the prepared pan.
34Bake for 40-45 minutes or until the edges are golden and the center is slightly fudgy.
35Bake for 40-45 minutes or until the edges are golden and the center is slightly fudgy.
36Bake for 40-45 minutes or until the edges are golden and the center is slightly fudgy.
37Let cool completely before cutting into brookies.
38Let cool completely before cutting into brookies.
39Let cool completely before cutting into brookies.
Ingredients
0.5 cup unsalted butter, melted and cooled
0.5 cup unsalted butter, melted and cooled
0.5 cup unsalted butter, melted and cooled
0.5 cup light brown sugar
0.5 cup light brown sugar
0.5 cup light brown sugar
0.33 cup granulated sugar
0.33 cup granulated sugar
0.33 cup granulated sugar
1 large egg, room temp
1 large egg, room temp
1 large egg, room temp
1 tbsp vanilla extract
1 tbsp vanilla extract
1 tbsp vanilla extract
1.25 cup all-purpose flour, spooned and leveled
1.25 cup all-purpose flour, spooned and leveled
1.25 cup all-purpose flour, spooned and leveled
0.5 tsp baking soda
0.5 tsp baking soda
0.5 tsp baking soda
0.5 tsp flaky sea salt
0.5 tsp flaky sea salt
0.5 tsp flaky sea salt
1.5 cups semi-sweet chocolate chips
1.5 cups semi-sweet chocolate chips
1.5 cups semi-sweet chocolate chips
1 cup unsalted butter
1 cup unsalted butter
1 cup unsalted butter
0.5 cup Dutch-processed cocoa powder
0.5 cup Dutch-processed cocoa powder
0.5 cup Dutch-processed cocoa powder
1 tsp vanilla
1 tsp vanilla
1 tsp vanilla
0.5 cup light brown sugar, spooned and leveled
0.5 cup light brown sugar, spooned and leveled
0.5 cup light brown sugar, spooned and leveled
1.75 cup powdered sugar
1.75 cup powdered sugar
1.75 cup powdered sugar
0.75 cup semi-sweet chocolate chips
0.75 cup semi-sweet chocolate chips
0.75 cup semi-sweet chocolate chips
0.33 cup semi-sweet chocolate, chopped
0.33 cup semi-sweet chocolate, chopped
0.33 cup semi-sweet chocolate, chopped
3 eggs, room temp
3 eggs, room temp
3 eggs, room temp
0.5 cup all-purpose flour
0.5 cup all-purpose flour
0.5 cup all-purpose flour
1 pinch salt
1 pinch salt
1 pinch salt
3 tbsp olive oil
3 tbsp olive oil
3 tbsp olive oil
Equipment
8x8 inch panparchment papersaucepanheatproof bowlwhiskbowl
Tips
Dissolving sugar in eggs ensures a crackly top.
You can adjust the layering to your preference, either by layering the cookie dough on top of the brownie batter or vice versa, or by creating a marbled effect by swirling the two batters together.