How to Make It
Preheat the oven to 400°. Set the ribs on a large rimmed baking sheet, skinned side up. In a small bowl, combine the garlic with the scallions, soy sauce, olive oil, brown sugar and vinegar. Season the ribs lightly with salt and generously with pepper. Brush some of the sauce on the skinned side of the ribs and turn them over; brush the remaining sauce over the tops of the ribs.
Roast the ribs in the upper third of the oven for about 45 minutes, until browned and tender. Let the ribs rest for 10 minutes, then slice into individual ribs and serve with the Panko-Crusted Mushrooms.