9 c  Sifted cake & pastry flour
1 c  Skim milk powder
1/2 c  Granulated sugar
1/4 c  Baking powder
1 tb Salt
2 ts Baking soda
1 lb Shortening

In large bowl, stir together flour, skim milk powder, granulated sugar,
baking powder, salt and baking soda. Using pastry blender, cut in
shortening until in fine crumbs. Transfer to airtight container; store in
refrigerator for up to 2 months. Stir well before using. Makes 15 cups.