Whip the Parfait in the food processor until light and airy.
Meanwhile, prepare a ganache by bringing the Cream to the boil and then pouring it onto the chocolate.
Let it sit briefly and then mix into a smooth ganache.
Stir a small portion of the whipped parfait into the lukewarm ganache.
Add this mixture to the remaining whipped parfait and mix until homogeneous.
Divide into silicone round moulds (6 cm diameter) and flatten.
Leave to set in the freezer.