Peanut Butter Cereal Treats

30 large marshmallows
3 tbsp butter
1 tbsp peanut butter
6 cups Peanut Butter Cap n Crunch
1 1/2 c milk chocolate M&Ms

In a large saucepan, combine the marshmallows, butter and peanut butter. Cook and stir over med-low heat until melted. Remove from the heat. Stir in the cereal and M&Ms. Pat into a 9x13 pan coated with cooking spray. Cool and cut into bars.