This is really easy! Soy yogurt may not be quite as thick as you are used to, so you might want to add a little powdered agar-agar or cornstarch to thicken. You may add whatever flavor you like, such as maple syrup or vanilla extract, or stir in some cane sugar and fresh fruit-whater tickles your fancy! Remember to set aside some of the yogurt before you add your flavor so you have a starter for your next batch. Acidophilus, soy yogurt and agar-agar can be found in health food stores. Adapted from The Garden of Vegan cookbook.