Created by KittenCal on December 10, 2011
Step 1: In an extra large micrwave-safe bowl place the marshmallows, peanut butter abd cubed butter. Microwave on HIGH for about 3-4 minutes or until hot. Remove and stir vigorously until smooth (you may need to return to microwave for another minute).
Step 2: Mix in the vanilla then Rice Krispies cereal.
Step 3: Using oiled hands press the mixture into a 13 x 9-inch pan. Allow to sit for about 1 hour. Slice into bars