Chewy Cocoa Peanut Butter Treats

1 cup light corn syrup
1 cup packed light brown sugar
2 cups peanut butter flavored baking chips
1/4 cup unsweetened cocoa
2 tbsp. butter
6 cups Rice Krispies

In large saucepan stir together brown sugar and corn syrup. Cook, over medium heat, stirring constantly, until mixture comes to a boil. Remove from heat; add peanut butter chips, cocoa and butter. Stir until chips are melted and mixture is smooth. (Mixture will be thick). Add cereal and stir until well coated. Immediately press into a buttered 9 x 13 inch pan. Cool thoroughly before cutting into bars.