1/2 gallon milk (whole milk, 1% reduced fat milk, 2% reduced fat milk; the whole milk works better).
1 cup Dannon Brand All Natural Plain Yogurt, or other brands of plain yogurt, but it must have active cultures ( this is the yogurt starter).
A one-cup measuring cup or one can contain the same amount liquid bowl and one spoon (use to mix plain yogurt and milk).
One big clean bath towel (used for covering the crockpot and keep the warm temperature).
If you want to know about the measurement please Click Here.
1. Pour the 1/2 gallon ( 8 cups) milk into crockpot;
2. Turn on the crockpot to low heat setting for about 2.5 hours;
3. Turn off the slow cooker and let the milk cool off for about 3-4 hours, depends you room temperature; you can check the milk temperature is about 115F. It is better between 110F-120F.
4. Take 1 cup plain yogurt as the yogurt starter out of refrigerator for about 30 minutes.
5. Spoon some of the warm milk from the crockpot, and mix well.
6. Pour this mixture back into the warm milk
7. Stir it, this will help to mix the mixture and milk.
8. Cover with the big towel and let it sit for about 8-12 hours, depends your room temperature, the longer time it takes the thicker it will be and will get a more sour taste.
9. Now the milk has become yogurt, when you remove the lid, you will see the yogurt have some liquid on it, this is normal, and this liquid is called "whey", I like to keep it in the yogurt. Or you can drain it off if you want to.
10. I gently take out about one cup into a clean box, and keep it in the refrigerator for up to a week, for next times yogurt starter. I keep this way for over ten times use, and then I will buy a new plain yogurt for the starter.
11. Move the rest of the yogurt into clean boxes or bottles, and refrigerate. Afer 4-6 hours, it will be nice and creamy plain yogurt.
12. Add sugar or other sweetener for sweet taste, you can also add vanilla flavor to become vanilla yogurt; add fruits to become fruit yogurt; making some frozen yogurt is another good idea.
13. Now enjoy your homemade yogurt!
I have been using this recipe to make my homemade yogurt over two years, this has never failed me.
The cost for this was about: 1/2 gallon milk about $2.00, the 32oz plain yogurt about $2.40, I only use one cup (about 8 oz, about $0.60) so total was about $2.60, and you'll get 1/2 gallon plain yogurt. It really saves a lot and you get healthy food.
(All the price here is at 2011, I didn't count the electrical bill.)
Please let me know what is yours like, I want a scoop!