1/4 c. butter
1 pkg. reg. (10 oz.) marshmallows
6 c. Rice Krispies
1/2 c. peanut butter

Melt butter in large saucepan over low heat. Add marshmallows and stir until completely melted. Remove from heat.

Add peanut butter and Rice Krispies. Stir until well coated.

Using buttered spatula press mixture evenly into buttered 13x9x2 inch pan. Cut into squares when cool.