Cook one large sweet potato in boiling water, then put in cold water to cool, peel and mash. (You can use 1 cup canned sweet potatoes mashed). In a large bowl mix mashed sweet potatoes, oil, eggs, milk, brown sugar, white sugar and applesauce with spoon.
Add flour, baking powder, spices, salt and continue mixing. Stir in nuts and walnuts and mix till all ingredients are wet. Pour into a greased or sprayed 9 x 5 x 3 bread pan.
Bake in preheated 350 degree oven for 45 minutes. Cool for 15 minutes before removing from pan.
Always check your bread for doneness as ovens vary. Also opening and closing your oven during cooking can cause it to need more time to cook.