Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Line a 9x13 inch baking pan with parchment paper and spray with non-stick spray.
- For Brownie Layer: Whisk melted butter and sugar in a bowl. Add cocoa, vanilla, food coloring, and vinegar. Whisk in eggs. Fold in flour and salt. Set aside.
- For Cookie Layer: Cream softened butter and sugars until fluffy. Beat in egg and vanilla. Stir in flour, baking soda, and salt. Fold in chocolate chips.
- Drop alternate scoops of brownie batter and cookie dough into the pan in a checkerboard pattern.
- Bake for 22-28 minutes until the top is set. A toothpick should come out with moist crumbs.
- Sprinkle immediately with flaky sea salt.
- Cool completely in the pan before lifting out and slicing.
Notes
Use gel food coloring for the best red color. Do not overbake to keep them fudgy.