Brown Butter Oreo Brookies

Ingredients

• 1/2 cup (110g) + 1 tbsp unsalted butter*
• 1/2 cup (100g) dark brown sugar, packed
• 1/4 cup (50g) granulated sugar
• 1 large egg
• 1 1/2 tsp vanilla extract
• 1 1/4 cups (165g) all purpose flour
• 1/2 tsp baking powder
• 3/4 tsp kosher salt
• 1 cup (185g) semisweet chocolate chips, plus more for sprinkling on top
• Flaky sea salt, for sprinkling

Method

1. Mix together the cookie dough ingredients: brown butter, brown sugar, granulated sugar, egg, vanilla, all-purpose flour, baking powder, salt, chocolate chips, and chopped Oreos. Set aside.
2. In a pot, melt the butter with vegetable oil over medium heat until completely melted. Set aside.
3. In another bowl, mix granulated sugar, eggs, egg yolk, and vanilla for 3-5 minutes.
4. Add the melted butter mixture to the egg mixture and mix.
5. Fold in the dry ingredients for the brownie batter: all-purpose flour, baking powder, salt, cocoa powder, and optional espresso powder.
6. Pour the cookie dough into a 9x9 inch pan lined with parchment paper.
7. Spread the brownie batter over the cookie dough layer.
8. Top with more chopped Oreos.
9. Bake at 350F (177C) for 30-35 minutes.
10. Let cool in the pan for at least 1 hour before slicing.