No-Bake Chocolate Peanut Butter Marshmallow Bars

1/2 cup butter
2 cups semi-sweet chocolate chips
1 cup butterscotch flavored chips
16 tablespoons crunchy peanut butter
4 cups crispy rice cereal
3 cups miniature marshmallows
non-stick cooking spray

1. Spray a rectangular baking pan with non-stick cooking spray
2. Melt butter, chocolate chips and butterscotch chips in a saucepan over medium-low heat stirring constantly.
3. Add peanut butter and stir until blended.
4. Remove from heat and fold in crispy rice cereal and marshmallow.
5. Press into baking dish and refrigerate until firm (about 30 minutes).
6. Cut into 48 bars. Keep refrigerated until eaten.