Oven Barbecued Ribs

1 tbsp. fat or shortening
3/4 cup minced onions
1 1/2 tsp dry mustard
1/8 tsp cayenne
1 1/2 tsp Worcestershire sauce
4 lbs spareribs, cut in 2 rib pieces
1 c ketchup
1/3 c brown sugar
1 bay leaf

Preheat oven for 350°. In a large frying pan melt fat over medium heat and place ribs in the pan and brown on both sides. Transfer ribs to a roasting pan.

Meanwhile in a saucepan combine remaining ingredients. Bring to a boil over medium heat, reduce heat to low and simmer ten minutes while stirring occasionally. Pour half the sauce over ribs in the roasting pan and cover tightly. Bake 1 1/2 hours or until ribs are fork tender, basting frequently with remaining sauce. Bake uncovered for 15 minutes or longer or until ribs are crisp.