1/4 c. (1/2 stick) butter
1/2 c. peanut butter
1/2 lb. (1/2 bag) marshmallows
5 c. dry cereal (Cheerios, Kix, Trix, etc.)

In the top of a double boiler, put butter, peanut butter and marshmallows. Heat over hot water until ingredients are melted.

Place cereal in large bowl. Sir in liquid mixture. Blend well. Spoon mixture into a buttered and floured 9x9-inch baking dish. Cool until hardened. Cut into squares.