Preheat oven to 425F. In medium-size bowl, sift together dry ingredients. With pastry blender or knife, cut in margarine until mixture resembles coarse oatmeal. Add raisins and stir to mix. Make a well in center of flour mixture. Pour in milk. Stir rapidly with spatula until dough is just moist enough to leave side of bowl to form a ball. Knead dough lightly 10 to 15 times, then roll or pat out on floured surface to -inch thickness. Cut into circles with biscuit cutter. Fit close together on nonstick baking sheet.* Bake 10 to 15 minutes, or until golden brown. Transfer to cooling racks. *If you don’t own a nonstick baking sheet, you can spray your baking sheet with a nonstick coating agent.