Why go to the store and throw away your hard-earned cash, when you can make this at home for a fraction of the cost. Not only does it taste better, but you know everything that is in it - no strange ingredients.
4 1/2 cups all-purpose flour
2 tbsp. sugar (granulated or brown)
1 tbsp. + 2 tsp. baking powder
1/2 tsp salt
2/3 cup powdered buttermilk
1 cup. butter-flavor shortening
Place 3 cups of the flour, sugar, baking powder, salt and buttermilk into the work bowl of a food processor fitted with the blade attachment. Break up the shortening and place it in sections on top of the mixture. Place food processor cover on and turn machine ON. Mixture will begin to form together. Remove cover and put the remaining flour into work bowl, place cover back on and turn machine ON again, breaking mixture off side walls if it gets compacted.
Pour mixture into a bowl and break up with your fingers to make sure it is fully combined. Put into desired container and keep in the cupboard or refrigerator indefinitely. You just saved yourself $7!