Homemade yogurt is not only inexpensive to make, it's really good for you, and tastes so much better than commercial yogurt.You Need:
Pour in the reserved starter from your last batch. If this is your first time making yogurt, you'll need to purchase a small container of plain yogurt from the supermarket to get you started. After your first batch, you won't need to purchase it anymore. Last, add the whole can of evaporated milk.
Mix this well.
Cover the bowl with plastic wrap.
Place your heating pad inside a pie plate, or a larger bowl big enough to hold the bowl you mixed your yogurt in. Nest your yogurt bowl inside this. Turn the heating pad on low.
Cover this whole thing with a towel to keep more heat in. Now let this incubate for about 5 or 6 hours. Don't disturb the yogurt when it's incubating. It won't ruin it, but it will take a lot longer to set if you do. That's it! After your yogurt is done, cool the bowl inside the refrigerator overnight if possible. It will thicken even more as it cools. You can eat it with fresh or frozen fruit, or add some vanilla. You can also cook with it. If a recipe calls for buttermilk you can replace that with your homemade yogurt.
If you want to use fresh milk, you'll need to scald the milk before incubating your yogurt:
When it has cooled down enough, ( I test the temp like one would test the temp in a baby bottle-on my wrist) stir in the commercial yogurt and mix well.