Homemade crockpot yogurt, big success!

We've gone so far over our food budget its ridiculous. I'm trying to use up the things we have around here rather then buy a bunch more food. (we are going to the farmers market today) Our fridge held the last small container of yogurt, should we buy more? Its on sale 6 ounces for .59 cents. Seems pretty cheap right? I spent $1.50 on half a gallon of milk. That is 64 ounces. Using A Year of Crockpotting's recipe I made yogurt right in the crockpot. My homemade yogurt cost 2 cents an ounce. I used our last container or yogurt (flavored) as the starter, 2% milk, and 1 tablespoon of bulk gelatin when I added the starter. The Gelatin really helps thicken the yogurt, its like yoplait's thick and creamy kind. Now we have half a gallon of unflavored yogurt. Did i mention we hate plain yogurt?

I took all the blackberries we had left from this picking, and ran them through the food processor. After grinding them into a pulpy syrup I ran the syrup through a strainer. After being free of blackberry seeds I added sugar in till the syrup tasted sweet. I'm hoping my blackberry syrup will flavor the yogurt. I have heard of adding jam and preserves to flavor the yogurt, probably try that as well.

Cost of homemade yogurt: Free blackberries, few pennies for the sugar, Milk $1.50, few pennies for electricity, few pennies for bulk gelatin.
Sorry I can't be precise but I dont keep the prices of my bulk items.

I can tell you that half a gallon of the sale priced yogurt would cost $6.29. BIG difference. Not to mention the waste from 10/11 small plastic containers. The only trash generated with my version was the milk jug.