Christina's Slow Cooker Yogurt

source unkown

8 cups milk (the more fatty the milk, the richer the yogurt will be)
1/2 already-made yogurt for starter

Put milk in crockpot. Turn on low for 2 1/2 hours. Let sit for 3 hours. Remove about 2 cups of milk from the crock pot and stir in the starter. Add it all back into the crockpot and cover with a lid. Wrap a large towel around the crockpot (helps it keep its warmth longer) and let sit overnight. In the morning, you'll have plain yogurt!

To make other flavors, add in sweetener/vanilla/fruit at the end or use as a base for savory sauces, etc.