Put a delicious spin on the classic recipe by making a homemade s'more dip in the oven. Preheat the oven to 450° F and brush the inside of a skillet with melted butter. In thin layers, top with chocolate chips and marshmallows. Transfer to the oven and bake for 5–6 minutes or until golden brown. Serve the dip warm with a plate of graham crackers for the perfect afternoon snack or a delicious dessert.