Graham Cereal Bars, aka S'mores Bars

3/4 cup light corn syrup    3 tablespoons butter    2 cups dark or white chocolate chips    1 teaspoon vanilla    1 box (12 ounces) honey cereal    3 cups mini marshmallows

Combine syrup, butter and chocolate chips in a saucepan, bring to a boil over medium heat and add vanilla. Distribute cereal in a 9 x 12 baking pan, add marshmallows and mix. Pour syrup mixture over all. Refrigerate until set and cut into squares. If desired, add 1/2 cup of your favorite nuts, chopped.