Heat oven to 425 F. Lightly grease cookie sheet. Combine dry ingredients; cut in margarine until mixture resembles coarse crumbs. Stir in cheese. Combine sour half and half and milk; add to dry ingredients, mixing just until moistened. Shape dough to form a ball; knead gently on lightly floured surface 10 to 12 times. Roll dough to 3/4 inch thickness. Cut with floured 2-inch biscuit cutter. Place 1 inch apart on prepared cookie sheet. Bake 10 to 12 minutes or until golden brown.
Source: "Hurry, Let's Eat!" Reprinted with permission from The Quaker Oats Company Electronic format courtesy of Karen Mintzias