3-4 pound slab of spare ribs
2 tablespoons Sweet paprika
1 tablespoon Old Bay seasoning
1 1/2 teaspoons high quality Chili powder
1 1/2 teaspoons Granulated brown sugar
1 1/2 teaspoons Freshly-ground black pepper
3/4 teaspoon Garlic powder
3/4 teaspoon Onion powder
1 tablespoon White vinegar
1/2 teaspoon Salt

In a bowl, mix together the paprika, vinegar, Old Bay seasoning, chili powder, sugar, black pepper, salt, garlic powder and onion powder. Rub half the mixture all over the slab of spare ribs, on every side. Save the other half of the dry rub mix for later.
Place ribs in shallow roasting pan, meaty side up. Roast in very hot oven, 450 F degrees, 30 minutes. Continue baking in a moderate oven, 350 F degrees, about 2 hours. Half way through take some of the drippings and mix them with the remaining rub and baste the ribs with the mixture.