In a large bowl, sift together both types of flour, sugar, baking powder, cream of tartar, and salt. Using a pastry blender or a fork, cut the margarine into the dry ingredients until the mixture resembles coarse crumbs. Drizzle the soy milk over the mixture and stir lightly to form a dough. Transfer the dough to a lightly floured work surface. Using your hands, gather the dough into a ball and knead gently a few times. Roll out or pat the dough with your hands to a 3/4-inch thickness. Using a round 2 1/2-inch cookie cutter or knife, cut the dough into 12 biscuits. Transfer the cut biscuits to a non-stick cookie sheet and space them 1-inch apart. Bake the biscuits at 425 degrees for 10-12 minutes or until lightly browned.

Yield: 1 Dozen