In a large skillet brown hamburger and onion, pepper, celery mix. Cook until hamburger is no longer pink. Drain if needed.
Return hamburger mixture to skillet and add garlic and cook for about 1 min.
Add the rest of the ingredients and cook on med/low heat until reduced down. This may take 25-30 mins. depending on the amount of liquid.**If the sloppy joe mix is too thin after cooking for 30 mins. then mix 1-2 tbsp. of cornstarch with 3 tbsp. of water and stir. Cook for about 5 mins longer.
Serve on toasted hamburger buns. Topping options are mayo, mustard, dill pickles, slaw, & cheddar cheese.