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Cookie and Brownie Recipe – Thick Brown Butter Brookies

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Rich, fudgy brownies topped with chewy chocolate chip cookie dough, both made with nutty browned butter. The ultimate indulgent dessert bar.

Ingredients

Scale

Brownie Layer:

  • ½ cup browned butter

  • ½ cup brown sugar

  • ¼ cup white sugar

  • 1 egg + 1 yolk

  • 1 tsp vanilla

  • ½ cup cocoa powder

  • ⅓ cup all-purpose flour

  • ¼ tsp salt

  • ¼ cup chocolate chips (optional)

Cookie Layer:

  • ½ cup browned butter (softened)

  • ⅓ cup brown sugar

  • 2 tbsp white sugar

  • 1 egg yolk

  • ½ tsp vanilla

  • ½ cup all-purpose flour

  • ¼ tsp baking soda

  • Pinch of salt

  • ⅓ cup chocolate chips

Instructions

  • Brown 1 cup butter, cool, and divide into two ½-cup portions.

  • Make brownie batter by mixing butter, sugars, eggs, vanilla, cocoa, flour, and chips.

  • Make cookie dough by creaming browned butter, sugars, yolk, vanilla, dry ingredients, and chips.

  • Spread brownie layer in an 8×8 pan. Spoon cookie dough over top.

  • Bake at 350°F for 26–30 minutes. Cool before slicing.

Notes

Store up to 3 days at room temp or freeze 2 months. Add nuts, espresso powder, or sea salt for extra flavor.