In a bowl stir together flour, baking powder, sugar, cream of tartar, and salt. Cut in shortening, margarine, or butter till mixture resembles coarse crumbs. Make a well in the center; add milk all at once. Stir just till dough clings together.

On a lightly floured surface, knead dough gently for 10 to 12 strokes. Roll or pat dough to 1/2-inch thickness. Cut with a 2 1/2-inch biscuit cutter, dipping into flour between cuts.

Transfer biscuits to a baking sheet. Bake in a 450° oven for 10 to 12 minutes or till golden. Serve warm. Makes 10.

Prepare as above, except increase milk to 1 cup. Do not knead, roll, or cut dough. Drop dough from a tablespoon onto a greased baking sheet. Makes 10 to 12.