In a large bowl, whisk together the flour, baking powder, and salt.
Cut in the shortening or butter using a pastry cutter or fork until the mixture resembles coarse crumbs.
Store in an airtight container in a cool, dry place for up to 3 months or in the refrigerator for up to 6 months.
To Use as Bisquick Substitute:
Use 1 cup of mix in place of 1 cup of Bisquick in recipes.
