Preheat oven to 350 F.
Cream butter & sugar well.
Sift flour; measure; resift 3 times with spices, salt.
Alternately add dry ingredients with soup-soda mixture.
Pour into greased loaf pan. (Size important; about 8-1/4 x 4-1/2 x 2-1/2).
Bake 50 to 60 minutes until cake tester comes out clean.
If you want to frost the cake, let it cool completely first. (Frosting calories not included in calorie count below.)