Divide 1/3 of the cherry juice into 8 cups (approx. 75 ml) and put them in the freezer for half an hour. Stone the cherries
Mix yoghurt, sugar and vanilla sugar. Whip the cream until stiff and fold into the yoghurt mixture. Pour the cream over the frozen cherries and freeze again for 3 - 4 hours.
To topple, dip the cups to just below the rim briefly in hot water and fall onto the tortlettes. If the ice cream is thawed for a few minutes, it tastes very creamy.