Christmas Brookies
These Christmas brookies are the ultimate holiday mash-up: a fudgy brownie base topped with a chewy cookie layer filled with red and green M&Ms and festive sprinkles. Perfect for cookie swaps, Christmas party desserts, or simply enjoying with family, these bars are gooey, colorful, and so easy to make.
Ingredients
For the Brownie Layer
- 1 box brownie mix any brand will do
- The other ingredients your brownie mix calls for usually eggs, oil and water
For the Cookie Layer
- 1/2 cup (1 stick) unsalted butter softened
- 1/2 cup granulated sugar
- 1/4 cup brown sugar
- 1 egg
- 1 tsp vanilla
- 1 1/4 cup flour
- 1/2 tsp baking soda
- 1/4 tsp salt
- 1/2 cup mini chocolate chips optional, but tasty
- 1/2 cup red and green M&Ms
- 1/4 cup Christmas sprinkles jimmies work best
Instructions
Par Bake Brownie Layer
- Preheat the oven to 350°F and grease a 9×13-inch baking pan (or line it with parchment paper for easier cleanup).
- Prepare the brownie batter according to the instructions on the box. Spread evenly in your prepared pan.
- Bake the brownie layer for 15–20 minutes so it’s set but not fully baked.
Prepare Cookie Layer
- Beat butter and sugars until fluffy, then mix in the egg and vanilla.
- Stir in flour, baking soda, and salt until dough forms.
- Fold in chocolate chips, sprinkles, and some of the M&Ms. Same the rest of the M&M's to sprinkle on top.
- Drop spoonfuls of dough over the brownies. No need to spread; it will spread as it bakes.
Bake and Top with M&Ms
- Bake brownie and cookie layer for 15–20 minutes, then sprinkle the reserved M&Ms on top.
- Continue baking another 15–20 minutes until golden on top and just set.
- Let cool completely before cutting into squares.