Puree the bananas with the hand blender. Add the milk and vanilla sugar and mix everything together. Stir in the whipped cream and a good dash of amaretto. Maybe add sugar if it`s not sweet enough.
Pour the mass into a container and place in the freezer for 6 hours. It is important to stir the ice once every hour to avoid crystallizing. If you have an ice machine, you can make the ice in 30 minutes.