Ricotta Cheese is ridiculously easy to make. From scratch.
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1/2 gallon whole milk
1c plain whole-milk yogurt
1/2c heavy cream
2tsp white vinegar
1tsp salt
Dump all of the ingredients into a pot and bring it to a boil. Boil it very, very gently until the milk is curdled, 1 or 2 minutes. Line a strainer with a few layers of cheesecloth and set it over a deep bowl. Pour the curdled milk into the strainer and drain for 15 minutes. Gather the cheesecloth and gently squeeze out the remaining liquid.
Seriously. That's it. And it's fantastic.
BONUS YOGURT QUESTION: I could only find whole milk plain yogurt in gigantic granola-cruncher size, and I hate eating the stuff. What can I do with it?