1/4 c. butter
1 (10 oz.) pkg. (about 40) regular marshmallows
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. Stir until well coated.

Using buttered spatula or waxed paper, press mixture evenly into buttered 13"x9"x2 pan. Cut into squares when cool.