Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Line a 9×13-inch baking pan with foil or parchment paper. Spray with nonstick spray.
- In a microwave-safe bowl, melt 1/2 cup butter and 1 1/2 cups chocolate chips in 30-second intervals, stirring until smooth.
- Add sugar, eggs, egg yolk, and vanilla to melted chocolate. Beat until smooth.
- Gently fold in flour until just combined. Pour into prepared pan and spread evenly.
- Bake for 20 minutes. Edges should look set but center will still jiggle slightly.
- Remove from oven and layer half of the nuts, half of the divided chocolate chips, half of mini and regular M&M’s, then all of the coconut.
- Drizzle sweetened condensed milk evenly over the top, spreading gently.
- Sprinkle remaining chocolate chips, M&M’s, and holiday sprinkles over the top.
- Return to oven and bake for 25 more minutes, until edges are golden and center is mostly set. Tent with foil if browning too fast.
- Cool completely in pan on wire rack. Once cooled, cut into squares and serve.
Notes
Avoid overmixing for fudgy texture. Cool fully before slicing to ensure clean cuts. Tent loosely with foil if the top browns too quickly during baking. You can substitute nuts, candies, or add a minty twist with peppermint extract.
