Blue T-Bone with Sweet Onion Topping
Four 1 to 1 1/4-pound T-bone steaks, 1 to 1 1/4 inches thick, at least choice grade
Kosher salt or other coarse salt
Sweet Onion Topping
2 large sweet onions, such as Vidalia, Maui, Texas 1015, or Walla Walla
1/4 cup unsalted butter
2 tablespoons vegetable oil
3 tablespoons dry red wine
1/2 teaspoon kosher salt or other coarse salt
3 ounces blue cheese, crumbled, at room temperature
Sprinkle the steaks lightly with salt, cover them, and let them sit at room temperature for about 30 minutes.
Slice the onions in half from end to end. Slice each half into 3/4-inch to 1-inch wedges, cutting through the root end so that the wedges hold together. Melt the butter with the oil in a heavy skillet over medium-low heat. Add the onions to the skillet and gently turn them over in the butter to coat all sides. Cover the skillet and let the onions cook for 12 to 15 minutes, until crisp-tender with some brown edges. Uncover the onions and add the wine and salt. Raise the heat to medium-high and continue cooking until the onions color lightly and the excess liquid evaporates, frequently scraping up any browned bits from the bottom of the pan. Keep the onions warm.
Fire up the grill for a two-level fire capable of cooking first on high heat (1 to 2 seconds with the hand test) and then on medium heat (4 to 5 seconds with the hand test).
When grilling T-bones, it’s important to keep the smaller, more tender section of the steak angled away from the hottest part of the fire. Grill the steaks uncovered over high heat for 2 to 3 minutes per side. Move the steaks to medium heat, turning them again, and continue grilling for 2 to 3 minutes per side for medium-rare doneness. The steaks should be turned a minimum of three times, more often if juice begins to form on the surface. If grilling covered, sear both sides of the meat first on high heat uncovered for 2 to 3 minutes; finish cooking with the cover on over medium heat for 5 to 6 minutes, turning the steaks once midway.
Transfer the steaks to plates, scatter blue cheese over each, top with the warm onions, and serve hot.