4 1/2 cup mini-marshmallows
3 1/2 cup Rice Chex
3 1/2 cup Corn Chex
1/2 cup peanutbutter
1/4 cup butter
1/2 cup M&M's (plain chocolate)

Grease a 13" x 9" x 2" baking pan; set aside.

In large bowl, combine 4 cups marshmallows, peanutbutter, and butter.  Microwave on high 2
minutes or until melted; stir until smooth.  Add, in the following order: remaining marshmallows,
Rice Chex, M&M's and Corn Chex.  Stir to coat all pieces evenly.  Using back of a buttered spoon, or buttered hands, spread cereal mixture evenly into prepared pan.  Refrigerate 1 hour.

To serve, pull apart and enjoy.  Refrigerate any leftovers in airtight container.