1 c. Karo syrup
1 c. sugar
1 c. peanut butter
6 c. crisp rice cereal

Grease 13x9x2 baking pan. In large saucepan stir corn syrup, sugar and peanut butter over low heat. Stirring constantly, bring to boil. Remove from heat; add cereal. Toss to coat. Press into pan; cool. If desired, pour chocolate or butterscotch chips on top before it cools.