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

Melt butter in large saucepan over low heat. Add marshmallows and stir until completely melted. Remove from heat.

Stir peanut butter into marshmallow mixture just before adding cereal. Using buttered spatula or waxed paper press mixture evenly into buttered 13x9x2 inch pan. Cut into squares when cool.