1 pkg. (2 c.) chocolate chips
1/2 c. butter
1/2 c. light corn syrup
2 tsp. vanilla
1 c. confectioners' sugar
4 c. Rice Krispies

Melt chips, butter, and syrup (low heat). Remove from heat. Stir in vanilla and sugar. Add cereal. Spread in buttered pan. Chill until firm.