Preheat oven to 450 degrees.
Sift flour and baking powder into bowl. Cut in the shortening and
margarine until mixture resembles course cornmeal.. Fill measuring cup
with buttermilk, whole milk and enough water to make 3/4 cup. Make well in
center of dry ingredients; pour in liquid. With hands, mix lightly and
quickly to form dough moist enough to leave sides of bowl. Turn out onto a
lightly floured surface and knead gently 6-7 times, working dough into a
large ball. Pinch off portions of dough for desired size of biscuit. Keep
fingers dry by dipping into dry flour frequently. Press slightly to
flatten and place on a greased baking sheet. Bake for 12 to 15 minutes.
