Barbecue Beef Short Ribs

3 1/2 pounds beef short ribs
1 tablespoon vegetable oil
1 large onion, cut into wedges
4 medium potatoes, peeled
4 medium carrots; pared, cut up
1 cup water
1/3 cup red wine vinegar
1 tablespoon paprika
1 teaspoon curry powder
1/2 teaspoon chili powder
1/2 teaspoon dry mustard
2 teaspoons salt
1 tablespoon cornstarch, optional
2 tablespoons water

Brown ribs in vegetable oil; place in crock pot with onions, potatoes and carrots.

Mix next 8 ingredients and pour over ribs and vegetables.

Cover and cook on low for 8 to 10 hours. Thicken with cornstarch mixed with water, if desired.

Serves 4.