1 c. light corn syrup
1/2 c. sugar
1/2 c. brown sugar, packed
1 c. crunchy peanut butter
6 c. Rice Chex cereal

Spray a 9 inch pan with Pam. Combine corn syrup and sugars in a saucepan. Cook over medium heat just until mixture comes to a boil. Remove from heat. Stir in peanut butter and gradually add cereal. Stir well to coat cereal. Turn into prepared pan and refrigerate 15 minutes or until firm.