Arrange beef ribs on rack in baking pan. Sauté onion and garlic in oil til golden.
Add mustard, tomato puree, sugar, soy sauce, vinegar, bay leaves, hot pepper sauce, barbecue spice and salt and simmer about 15 minutes. Strain. Brush barbecue sauce generously over beef ribs, covering them thoroughly. Bake at 375 to 400 for about 45 minutes. Baste frequently with sauce til beef ribs are tender and well done. Store any remaining sauce, covered in refrigerator. Makes 8 servings.