Yogurt is really easy to make at home. Back when I was eating dairy I used to make a quart of it every week. I used a Yogourmet yogurt maker and made the yogurt with half and half (Half and half from a local dairy that had no additives), fermented it for 24 hours to get rid of all the lactose and then let it drip for a few hours, to get wonderfully thick full fat yogurt.