6 c. Rice Krispies
1 pkg. marshmallows
1/4 c. butter
1 c. rainbow colored jimmies

Grease rectangular pan with butter. Heat 1/4 cup butter in large saucepan until melted, add marshmallows and stir until melted. Remove from heat. Stir in Rice Krispies and jimmies. Press into pan using wax paper. Sprinkle jimmies on top. Let cool and cut into squares.