Just seen an Indian chef make paneer (sp) in 40 minutes.....
Boil some milk,and as it's just rising in the pan,add in some yoghurt a little at a time. This curdles the milk. Pour the whole lot into a muslin bag and drain off the liquid. Then wash through under a tap,this takes the last remaining bitterness of the yoghurt away. Drain again,then wrap tightly in the muslin,place a big weight on top and leave for 30 odd minutes. The result is like ricotta. Think I might wait til the herb garden is in full swing,then add in chives,garlic,basil and few other combinations. I'm guessing you could store it in jars covered with olive oil or any other flavoured oils too,great for presents!