4 1/2 c. flour
4 1/2 c. whole wheat flour
2 tbsp. baking powder
1 tbsp. salt
2 tsp. cream of tartar
1 tsp. baking soda
1 1/2 c. powdered milk
2 1/4 c. shortening

Sift together dry ingredients. Blend well. Cut in shortening. Mixture will resemble corn meal. Put in a large airtight container, label and store in a cool, dry place. Keeps 10 to 12 weeks.