1/4 c. butter
1 (10 oz.) pkg. marshmallows or 4 c. miniatures
6 c. Rice Krispies

Melt butter and marshmallows in large saucepan over low heat. Stir until melted. Remove from heat. Add cereal, stirring until well coated. Using buttered spatula or waxed paper, press mixture evenly into buttered 9 x 13 inch pan.