Ingredients
Serves: 12-16
Prep Time: 15 mins
Total Time: 43 mins
For the Birthday Cake Layers:
½ cup (1 stick) unsalted butter
1 large egg
1 cup light brown sugar, lightly packed
1 tablespoon imitation vanilla extract
1 cup all-purpose flour
Pinch of salt
Pinch of baking powder
¼ cup white chocolate chips
¼ cup semi sweet chocolate chips
¼ cup rainbow sprinkles, plus more to top
For the Brownie Layer:
5 tablespoons unsalted butter
½ cup granulated sugar
½ cup unsweetened dark cocoa powder (dutch process works best here)
¼ teaspoon vanilla extract
1 large egg, cold
Pinch of salt
Pinch of baking powder
¼ cup all purpose flour
Preparation
