1/4 c. butter
1 pkg. (10 oz., about 40) reg. marshmallows or 4 c. miniature
6 c. Rice Krispies cereal

Melt butter in large saucepan over low heat. Add marshmallows and stir until completely melted. Remove from heat. Add Rice Krispies cereal. Stir until well coated. Using buttered spatula or waxed paper, press mixture evenly into buttered 13 x 9 x 2 inch pan or 9 x 9 inch pan for thicker treats. Cut into squares when cool.