Combine the Franks Hot Sauce, brown sugar and water in a medium saucepan over medium heat. Stir until the brown sugar dissolves. Place the precooked meatballs in a crock pot and cover with the sauce. Cook for about 2-3 hours or until warmed through. Serve with toothpicks and buttermilk dressing (we call it ranch dressing in Utah) and celery sticks, if desired.