Fun Marshmallow Bars

Total Time

Prep: 10 min. Bake: 25 min. + cooling


3-1/2 dozen

Updated: Sep. 30, 2022
"These colorful kid-tested treats for fast at bake sales," promises Debbie Brunssen, a mother of six from Randolph, Nebraska. "A cake mix really cuts your prep time," she adds.


  • 1 package devil's food cake mix (regular size)
  • 1/4 cup water
  • 1/4 cup butter, melted
  • 1 large egg, room temperature
  • 3 cups miniature marshmallows
  • 1 cup milk chocolate M&M's
  • 1/2 cup chopped peanuts


  1. In a large bowl, combine cake mix, water, butter and egg. Press into a greased 13x9-in. baking pan. Bake at 375° until a toothpick inserted in the center comes out clean, 20-22 minutes.
  2. Sprinkle with marshmallows, M&M's and peanuts. Bake until marshmallows begin to melt, 2-3 minutes longer. Cool on a wire rack. Cut into bars.

Nutrition Facts

1 each: 108 calories, 4g fat (2g saturated fat), 9mg cholesterol, 112mg sodium, 16g carbohydrate (10g sugars, 0 fiber), 1g protein.