Simple Meal of Simple Sloppy That Families have Enjoyed for Generations.
In a large skillet, cook beef and onions over medium heat until no longer pink. Sprinkle beef with salt, pepper and all of the brown sugar while it cooks.
Stir in the ketchup, water, Worcestershire sauce, and vinegar.
Bring mixture to a light boil. Reduce heat; cover and simmer for 10 minutes.
Serve on buns and sprinkle with cheese (if desired).