1 box chocolate cake mix (yellow, if preferred)
1/2 cup butter, melted
3 cups miniature marshmallows
1 cup M&M candies
1/2 cup chopped peanuts
Preheat oven to 375 degrees.
Lightly grease or spray with nonstick cooking spray a 13 x 9 x 2-inch baking pan; set aside.
In a mixing bowl, mix the cake mix, butter, and egg until combined; spread in the bottom of the prepared pan. Bake at 375 degrees for 16 to 20 minutes until a wooden toothpick inserted in the center comes out clean. Remove from the oven and immediately sprinkle the miniature marshmallows over the crust. Top with the M&M candies and then the peanuts. Bake another 2 to 3 minutes until the marshmallows begin to melt. Allow to cool completely then cut into 24 bars.
Note: Bars will cut easier if refrigerated for a half hour before attempting to cut. Spray knife with nonstick cooking spray. It will be easier to cut through the marshmallow layer.