Preheat the oven to 325˚F. Line a baking tray with parchment paper.
Remove silverskin from ribs, dry with a paper towel, and cut into 2-3 rib sections. Add to the baking tray and sprinkle with salt and pepper.
Cover tightly with foil and bake for one hour, or until almost tender. Drain.
Meanwhile, in a medium saucepan, combine all sweet and sour ingredients and cook over medium heat until thickened.
After one hour of baking, increase the oven temperature to 350˚F. Brush the entire sweet and sour sauce over the spareribs. Bake uncovered for 30 minutes or until completely tender, basting every 10 minutes.
Notes
To grill the ribs, bake as directed for 1 hour or until almost tender. Brush each piece with sauce and grill over medium heat for 20-30 minutes, basting them frequently with the sauce.