Melt margarine in large saucepan over low heat. Add marshmallows and
stir until completely melted. Remove from heat. Stir in peanut butter,
mixing until smooth. Add Rice Krispies. Stir until well coated. Using
buttered spatula or waxed paper, press mixture into a 3-quart rectangular
pan coated with cooking spray. Cut in 2-inch squares when cool.
Microwave directions: In large microwave-safe bowl, microwave margarine
and marshmallows at HIGH 1 minute longer. Stir until smooth. Add
cereal. Stir until well coated. Press into pan as directed. Makes 24
squares.