If desired, you can bake the ribs in advance, then refrigerate and grill right before serving. If you don’t want to finish the ribs on the grill, turn the oven to 450°F after baking, baste them with the barbecue sauce, recover with the foil, and roast for 15 minutes. Taste the ribs before deciding whether to add barbecue sauce; they’re obsession-worthy without it, too.