Peanut Butter Cheerios Treats...6 cups Cheerios, 2 tbsp butter, 1/3 cup smooth peanut butter, 40 marshmallows, 1 cup chocolate chips, 9x13 baking pan, spray pan and bake @ 350 until marshmallows, peanut butter and chips are well melted together, remove from oven, let cool, cut into squares and serve