Cream shortening, gradually add sugar; add eggs and vanilla;beat well. Sift flour with salt, baking powder, spices and soda. Mix with shortening, etc. Add apples and nuts. Stir. Spread mix into greased 8 X 12 pan; bake at 350 ° for 20 minutes. Remove from oven, spread with topping; return to oven and bake 20 minutes longer, or until done.
Topping: Combine 1 Cup Brown Sugar with 2 Tbspn Milk and 3 Tbspn Butter in saucepan. Heat slowly until well blended.