Ingredients
Method
- In a medium bowl, whisk together melted butter and sugar until glossy. Add eggs and vanilla and whisk until smooth.
- Sift in the flour, cocoa powder, and salt, then stir with a spatula just until combined.
- Spread the brownie batter evenly into the prepared pan
Make the Cookie Dough
- In another bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
- Add the egg and vanilla, mixing until combined. Then add the flour, baking soda, and salt, stirring until the dough just comes together.
- Fold in the chocolate chips
Layer and Bake
- Drop spoonfuls of cookie dough over the brownie batter. It doesn’t have to be perfect — the two layers will blend slightly as they bake, giving you that marbled brookie look.
- Bake for 28–32 minutes, depending on how gooey you like them.
Notes
- Use room temperature ingredients. It helps everything blend smoothly.
- Don’t overbake. The center should look just set — they’ll continue to firm up as they cool.
- Cool completely. Cutting too soon can make them messy, but warm slices with ice cream are totally worth it.
- Mix by hand. Overmixing can make the cookie layer tough.
- Try a sprinkle of sea salt. It adds that extra flavor pop on top.