Instructions

  1. Grease a 13x9x2-inch baking pan, set aside.
  2. In a large bowl, combine 4 cups of the marshmallows, peanut butter and butter.
  3. Microwave on high for 2 minutes or until melted.
  4. Stir until smooth.
  5. Add the remaining marshmallows, Rice Chex, Corn Chexh and the M&M's.
  6. To serve, pull apart and enjoy.
  7. Refrigerate any leftovers (yeah, right) in an airtight container.