1. Heat oil in a saucepan over medium heat. Add onion, peppers and garlic and stir until tender, 3 minutes. Stir in ketchup, jelly, vinegar and steak sauce and just bring to a boil. Reduce heat to low and simmer, uncovered, stirring occasionally, 5 minutes.
2. Heat oven to 350 degree F. Line a shallow roasting pan with double thickness of foil. Rub ribs with salt and place meaty side down in pan. Brush with 1/3 (about 1/2 cup) of sauce mixture and bake 25 to 35 minutes. Turn ribs and brush with another 1/3 of sauce. Bake 25 to 35 minutes more or until ribs are tender. Heat remaining sauce until bubbly; serve with the ribs. Makes 4 servings.