Chocolate Rice Krispie Squares

1/4 cup cocoa
3 tablespoons butter
1/4 cup corn syrup
1/4 cup sugar
3 cups Rice Krispies

Combine cocoa, butter, corn syrup and sugar in a saucepan. Cook and stir over low heat just until the mixture comes to a boil, then remove from heat.

Stir in Rice Krispies. Pack into a greased 8 inch square cake pan. Cool and cut in squares.