Barbecued Spareribs

3 to 4 pounds [1.4 à 1.8 kg] uncut spareribs Salt 2 medium-size onions, sliced 2 tablespoons [30 mL] vinegar 2 teaspoons [10 mL] salt 1 tablespoon [15 mL] Worcestershire sauce 2 teaspoons [10 mL] brown sugar 3/4 cup [190 mL] catsup Pinch red pepper 1/2 teaspoon [2.5 mL] paprika 1/2 teaspoon [2.5 mL] chili powder 1/4 teaspoon [1 mL] black pepper 3/4 cup [190 mL] water

Preheat oven to 350°F [180°C]. Cut spareribs into individual, approximately 8-rib servings. Arrange spareribs into a roasting pan; salt. Top all over with onion slices. Into a bowl, mix together vinegar, salt, Worcestershire sauce, brown sugar, catsup, red pepper, paprika, chili powder, black pepper and water. Pour into roasting pan; cover pan. Bake into preheated oven, for 90 minutes. Uncover and higher oven temperature to 375°F [190°C]. Bake for 20 minutes longer.