Marinated Short Ribs of Beef

Ingredients
3 lbs. short ribs of beef; cut into serving pieces
2 tbsp Mustard
1 tbsp chopped onion
1 tbsp calamansi juice
2 tbsp vinegar
¼ corn oil
1 tbsp salt
1 tsp black pepper
1 ½ chili powder
¼ tsp cayenne pepper

Procedure:
Mix all ingredients and marinate beef ribs for 12 hours or overnight. Turn meat occasionally. Place meat in a roasting pan or casserole, saving marinade. Cook uncovered in a preheated hot oven (450 F) for 20 minutes. Pour in marinade and baste with marinade occasionally. Cover and cook in slow oven (325 F) for about one hour or until meat is tender.
Thicken gravy with 2 tbsp. flour mixed until smooth with 3 tbsp water. Stir and cook one to two minutes or until gravy has thickened.