Spoon the mixture into a yogurt drainer (or cheesecloth-lined strainer nested in a bowl). Cover the drainer (or wrap the strainer and bowl completely in plastic wrap), and chill overnight. For thicker cheese, drain up to two days.
Discard the whey (or blend it into smoothies - it's full of protein).
Scoop the drained cheese into a container and serve, or cover and chill up to a total of seven days.