Indoor S'Mores - cooking recipe

Ingredients

2/3 c. Karo light corn syrup
2 Tbsp. margarine or butter
1 (11 1/2 oz.) pkg. chocolate morsels
1 tsp. vanilla
8 c. or 1 (10 oz.) pkg. Golden Grahams cereal
3 c. mini marshmallows

Preparation

Butter a 13 x 9 x 2-inch pan.
Heat corn syrup. margarine and chocolate morsels just to boiling in 3-quart saucepan, stirring constantly.
Remove from heat.
Stir in vanilla.
Pour over cereal in a large mixing bowl.
Toss quickly until covered.
Fold in marshmallows one cup at a time.
Press evenly in pan with buttered back of a spoon.
Let stand until firm, at least 1 hour.