Heat oil in skillet; add onion & saute until softened, about 3 minutes. Add apples & saute until until apples are very tender, 3-5 minutes longer. Transfer to a large bowl & cool completely. Add turkey, cracker crumbs, egg & spices; mix well. Divide the sausage into 6 equal portions & roll into approximately 8-inch lengths. When ready to cook, they can either be baked in the oven at 450 F. or lay on a sheet of greased foil & cook on the barbecue.