Roasted Lamb With Potato, Onion And Tomato Gratin - cooking recipe

Ingredients

6 garlic cloves, 1 split, rest chopped
2 lbs russet potatoes, peeled and thinly sliced
salt and pepper
1 tablespoon fresh thyme
2 large onions, very thinly sliced
5 medium tomatoes, cored and thinly sliced (about 1 pound)
2/3 cup dry white wine
1/3 cup olive oil
1 leg of lamb, with bone in (about 6 to 7 pounds)

Preparation

Preheat oven to 450\u00b0F.
Rub bottom of 16x10 gratin pan with split garlic clove.
Arrange potato slices in bottom of pan.
Season with salt, pepper, some of the thyme and chopped garlic.
Add a layer of onions and seasoning.
Add a layer of tomatoes and seasoning on top.
Drizzle with wine and oil.
Trim the thicker portions of fat from the leg of lamb.
Season with salt and pepper.
Place lamb on a sturdy cake rake directly on top of gratin pan.
Roast, uncovered, for about 1 hour and 15 minutes for rare lamb (1 hour and 45 minutes for well-done); turning lamb every 15 minutes, basting with liquid from gratin pan.
Remove from oven and allow to sit for 20 minutes before carving.