3 grilled spice rubbed pork with sweet potatoes and Recipes

cooking oil, cayenne, dried thyme, nutmeg, brown sugar, wine vinegar, salt, fresh-ground black pepper, pork tenderloin, sweet potatoes, peeled and cut diagonally into 1/4-inch slices, scallions including 2 inches of green top , root end trimmed

cooking oil, divided, cayenne, dried thyme, nutmeg, brown sugar, wine vinegar, salt, fresh ground pepper, pork tenderloin, sweet potato, peeled and cut diagonally into 1/4-in slices, scallions , with root end trimmed only