Oven-Barbecued Pork Ribs

2 T vegetable oil, divided
4 lbs country-style pork ribs
½ cup firmly packed brown sugar
1 tsp salt
1 tsp celery seeds
1 tsp chili powder
1/8 tsp pepper
2 cups water
1/4 cup white vinegar
¼ cup Worcestershire sauce
1 (12 oz) bottle chili sauce
1 medium onion, chopped

Add 1 T oil to a large Dutch oven type pan, place over medium-high heat until hot. Brown half of ribs in skillet; set aside. Brown remaining ribs in remaining 1 T oil. Return ribs to pan. Bake at 300° for 1 ½ hours.

Meanwhile, combine brown sugar and remaining 9 ingredients in a 2-quart saucepan. Bring to a boil; simmer, uncovered, over medium heat 1 hour.

Pour sauce over ribs. Bake uncovered, at 300° for 1 hour, basting occasionally. Yield: 4 servings.