Place waffle on a baking sheet. If waffle is frozen, preheat oven to 400 degrees. If thawed, preheat oven to 425 degrees. If waffle is frozen, bake for 4 to 6 minutes. If thawed, bake for 3 to 4 minutes.
Over a small bowl, spoon dark chocolate sauce over half the waffle to coat.
Place chocolate covered waffle on a plate. Top with mini marshmallows, chocolate peppermint candy and peppermint sugar.