Split franks but don't cut all the way through. Open to make them flat. Sprinkle brown sugar over them, one teaspoon per dog.
Spray cooking spray in a non-stick skillet, and cook franks first on the "rounded" side, and then flip to the "flattened and sugared" side. (This is where I like to allow mine to get a little blackened.).
Meanwhile, open buns, careful not to break, and brush each inner-side of buns with 1/2 tablespoon of butter. Broil until butter is melted and buns are a little toasted.
Add your favorite toppings and enjoy the best hot dog you'll ever eat!