2/3 c. light corn syrup
2 tbsp. butter
1 (11 1/2 oz.) pkg. Nestle milk chocolate morsels
1 tsp. vanilla
8 c. Golden Grahams cereal
3 c. miniature marshmallows

Butter rectangular pan, 13x9x2 inches. Heat corn syrup, butter and chocolate morsels to boiling in 3-quart saucepan, stirring constantly. Remove from heat. Stir in vanilla. Pour over cereal in large mixing bowl; toss quickly until completely coated with chocolate. Fold in marshmallows, 1 cup into about 1 1/2 inch squares. Store loosely at least 1 hour and cover at room temperature.