I have been making yogurt for years with powdered milk. My recipe is 2 1/2 cups powdered milk to 1 quart of warm water and I have a salton yogurt maker that I have had for years. Love the yogurt, better than any you can buy!! I even have a neighbor making it and she loves it. Just add my on flavoring after the yogurt is done, lemon juice, vanilla, almond, dried cranberries, pineapple, coconut, actually any fruit.