Homemade Crock-Pot Yogurt Recipe

-1/2 gallon whole milk

-1/2 cup plain yogurt made with live and active cultures (I have made this with flavored yogurt before and it worked but the yogurt had the faint flavor throughout, so it should be plain or vanilla yogurt)

-optional 1-2 cups of dried milk for thickening (I used 1 cup and it was thick)*Update 10/7/12 The first time you make this, try it without the dried milk and see if you need to add it. I don't add it anymore, and we get a great thickness.