Indoor S'mores

We lived with my parents for a summer. They were nice to put up with us for 6 weeks. This was the highlight of our 4th of July because: food. Duh. Anyway, my sister made these because my other sister had friends over and they were doing fireworks and these were amazing :) I'm pretty sure she used the recipe from the box but I think this one is exactly the same.

INGREDIENTS:
1 bag (10.5 oz) miniature marshmallows (5 1/2 cups)
1 1/2 cups milk chocolate chips (9 oz)
5 tablespoons butter or margarine
1/4 cup light corn syrup
1 teaspoon vanilla
1 box (13 oz) Golden Grahams cereal (8 cups)

DIRECTIONS:
Grease 13×9-inch pan with butter. Reserve 1 cup of the marshmallows.

In a large saucepan, melt the chocolate chips, butter, corn syrup and remaining marshmallows over low heat. Stir until completely melted.

Remove from heat; stir in vanilla.

Pour cereal into saucepan. Stir until coated with the melted chocolate mixture.

Stir in remaining 1 cup marshmallows.

With buttered back of spoon, press mixture in pan.

Cool at least 1 hour or until firm.

Store loosely covered at room temperature.