- Place ribs, meaty side down, in large, shallow foil-lined baking pan.
- Combine soy sauce and 1Tbsp. plum sauce; brush both sides of ribs with mixture
- Cover pan tightly with foil. Bake in 350°F. oven 50 minutes.
- Discard foil; turn ribs over, meaty side up. Brush ribs with half of remaining 1/3 cup plum sauce.
- Increase oven temperature to 400°F. and bake ribs 10 minutes. Brush ribs with remaining plum sauce and bake 10 minutes longer.