Christmas S'mores

I adapted this recipe from Bakergirl.

Our elf had all of the ingredients ready this morning:
12 graham crackers
3/4 cup butter
3/4 cup firmly packed brown sugar
3 1/2 cups miniature marshmallows
1 1/4 cup red and green M&Ms

 Preheat the oven to 350.  Line a 15x10x1 cookie sheet (the size is important) with foil and spray with non-stick spray.  Then place the crackers on it side by side.

 Melt butter and brown sugar over medium heat, stirring constantly, until smooth and mixture just comes to a boil.  Pour evenly over crackers. Bake for 5 to 6 minutes or until bubbly.  Keep a close eye on it.  Remove the pan from the oven and sprinkle the marshmallows on it.

 Bake for a couple of minutes until the marshmallows begin to soften.  Remove from the oven and add the chocolate chips.

 Let it completely cool before cutting.

 Enjoy.