Put thegelatin leaves in cold water to swell.
Grate themozzarella in the milk and put it on low heat to melt.
In a deep pan put the melted mozzarella, theyogurt, the icing, the grater and the ¼ of the melted gelatin. Mix very welland put in the fridge for 10'.
Put in aform, a layer of piss and cream, alternately and leave 2 cm on top.
Put thesweet grapes in a saucepan; add the gelatin and 2 tbsp. of water. When thedessert is firm, pour over the grape jelly and freeze.
In themeantime we have wet the fresh grapes with water and we have "buried"them in the sugar, just for decoration!