Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  10      cups          all-purpose flour
     1/3  cup           baking powder
     1/4  cup           sugar
   1      tablespoon    salt
   1      teaspoon      salt
   2      cups          shortening

Preparation:

Combine dry ingredients in a large mixing bowl. Divide flour mixture and shortening in half. Cut 1 cup shortening into half of flour mixture with a pastry blender until mixture resembles coarse meal. Repeat with remaining shortening and flour mixture. Combine mixtures. Store in an airtight container at room temperature up to 6 weeks. Refrigerate or freeze for longer storage.