9 c. flour
2/3 c. baking powder
2 tsp. cream of tartar
4 tsp. salt
1 c. plus 2 tbsp. powdered milk
1 3/4 c. shortening

Mix together and store in glass jar on pantry shelf. 2 cups mix makes 14 medium biscuits (takes about 2/3 to 1 cup water to 2 cups mix). Bake 12 minutes at 450 degrees.