i'd love to get some new recipes for make-your-own-mix ideas!
i'll start the thread with . . .

Homemade Biscuit-Quick

(can be used in any recipe which calls for Bisquick)

5 lbs all purpose flour (20 cups)
2-1/2 cups nonfat dry milk
3/4 cup baking powder
3 Tbsp. salt
2 Tbsp. cream of tartar
1/2 cup sugar

cut in:

2 lb. vegetable shortening (4 cups)

mixture should look like coarse cornmeal. store at room temp in tightly-covered container.

also: see the waffle thread for dry waffle mixes