SPRAY 13 x 9-inch baking pan with no-stick cooking spray.
MELT butter in large saucepan on low heat. Add marshmallows. Stir until completely melted. Remove from heat.
ADD peanut butter. Stir until well blended. Add cereal. Stir until well coated. Press into prepared pan. Cool completely. Cut into 24 pieces.
Courtesy of Jif®