Miso-Rubbed Rack of Lamb

2 tablespoons dark miso 1 tablespoon unsalted butter, room temperature 1 tablespoon mild chili powder 1 large egg yolk 1 tablespoon chopped fresh sage 2 tablespoons olive oil 2 frenched racks of lamb (1#189; pounds each) Salt and ground black pepper #188; cup panko (Japanese-style) bread crumbs Heat the oven to 400 degrees. In a small bowl, combine the miso, butter, chili powder, egg yolk and sage. Set aside. In a large saute pan, heat the oil. Season the lamb with salt and pepper, then add it to the pan and sear until browned, 2 to 3 minutes per side. Let the lamb cool slightly, then smear the miso-butter mixture over both sides. Firmly press the panko into the miso-butter mixture on the rounded side of each rack. Place the racks, rounded fat sides up, in a roasting pan. Roast until an instant-read thermometer inserted at the center of the rack reads 125 degrees, about 15-20 minutes. Transfer the lamb to a cutting board and let rest for 5 minutes. Serves four. "New American Table" by Marcus Samuelsson (2009 Wiley)