Start heating oven to 350. Grease 9x5x3 loaf pan. Onto waxed paper, sift flour, baking powder, cinnamon, salt, soda; add walnuts. In mixing bowl, beat egg; add applesauce, shortening. Add flour mixture; stir just until blended; turn into pan. Bake 1 hour. Cool in pan 10 minutes; remove. Cool overnight before slicing.