Thoroughly clean the legs. Wash them and pat dry with paper towels. Transfer legs in a large mixing bowl. Then season the thighs with salt, pepper, ground coriander, and Old Bay seasoning. Add yellow and whole grain mustard, cloves, bay leaves, and fresh orange juice.
Leave it at least for 30 - 60 minutes at room temperature.
Preheat the oven to 350 °F. Transfer turkey legs into the baking sleeve. Optional you can add one whole peeled carrot and one onion. Close hermetic the sleeve and arrange it on the tray. Send it to the preheated oven for about 1 - 1 1/2 hours. Once the time passed and you see legs lightly browned cut gently the top of the sleeve so the meat juice does not knock over. Raise the temperature to 400 °F and bake for 10 minutes more.
Remove meat from the oven and let it rest in the pan for about 15 minutes. Any meat needs some minutes to rest, during this time the muscle fibers relax and their juices are redistributed, increasing the fragility of the meat. Separate the meat of the bone and pour over it the gravy from the sleeve.
Serve with pleasure paired with a favorite side dish.