9 c. your favorite Chex cereal
1 c. semi-sweet chocolate chips
1/2 c. peanut butter
1 tsp. vanilla extract
1 1/2 c. powdered sugar

Pour cereals into large bowl; set aside. In 1-quart microwave-safe bowl, combine chocolate chips, peanut butter and butter. Microwave on High for 1 to 1 1/2 minutes or until smooth, stirring after 1 minute. Stir in vanilla. Pour chocolate mixture over cereals, stirring, until all pieces are evenly coated. Pour cereal mixture into a large resealable bag with powdered sugar. Seal securely and shake until all pieces are well coated. Spread on waxed paper to cool.