Indoor S'mores

I love s'mores, but don't always have a fire pit handy.

8 cups golden grahams
6 cups miniature marshmallows
1 1/2 cups milk chocolate chips
1/4 cup light corn syrup
5 tablespoons butter or margarine
1 teaspoon vanilla

Butter 9x13-inch pan. Measure cereal into large bowl. Heat 5 cups of marshmallows, the chocolate chips, corn syrup and butter in 3-quart saucepan over low heat, stirring occasionally, until melted. Remove from heat. Stir in vanilla. Pour over cereal in bowl; quickly toss until evenly coated. Stir in remaining 1 cup marshmallows.

Press mixture in pan, using back of spoon. Let stand uncovered at least 1 hour, or refrigerate for a firmer bar. For bars, cut into 6 rows by 6 rows. Store loosely covered at room temperature up to 2 days.