Soak gelatine in cold water. Mix cherry yoghurt and yoghurt. Squeeze the gelatine and melt it in a small pot at low heat. Stir in 3-4 tablespoons of yoghurt drop by drop and then run into the remaining yoghurt while stirring. For gelling (until the mass begins to draw streets), place in a cool place for 2-4 minutes.
In the meantime, whisk the egg white with the whisk of the hand mixer until stiff. Fold in portions into the gelling yoghurt. Pour into four dessert glasses, refrigerate for about 2 hours. Serve as you like, decorated with a dash of cherry jam and chocolate shavings