Beef Short Ribs

5 pounds beef short ribs
6 Tablespoons flour
2 teaspoons salt
1/2 teaspoon pepper
4 Tablespoons shortening
2 onion -- chopped
1 clove garlic -- minced
2 Tablespoons vinegar
2 Tablespoons brown sugar
2/3 cup catsup
1 Tablespoon worcestershire sauce
1 teaspoon prepared mustard
1 cup celery -- chopped
2 cups beef stock

Combine flour, salt & pepper. Dredge short ribs in flour mixture. Heat oil in Dutch oven until almost smoking. Quickly brown short ribs is oil until nicely browned. Add onion and garlic to ribs and let brown. Combine vinegar, brown sugar catsup, worcestershire and mustard and add to meat. Then stir in the celery and stock. Bring to boil. Cover and put in oven for at least 2 1/2 hours. For last hour add desired amount of small peeled onions and whole small carrots. Serve over white rice.