1 Stir Together In A Small Bowl The Ground Cumin, Coriander, Thyme, Rosemary, Curry Powder, And Salt. Mix In 1/4 Cup Olive Oil. Place Lamb Shanks In Large Freezer Bag. Add The Spice Oil To The Bag. Rub Spice Oil All Over Shanks. Press The Air Out Of The Bag And Seal The Bag. Place In A Dish To Catch Any Leakage. Marinate 4 Hours Or Overnight. 2 Preheat Oven To 350