Cranberries are sent to bananas. I didn't even defrost the cranberries.
Pour sugar into the blender.
Sour cream or thick cream is also spread in a blender.
The last chord is liquor. Any, on your taste.
All the ingredients are thoroughly whipped in a blender, spread in a freezer or just a bowl. With freezer easier - put in the freezer and forgotten. Without it, you will have to mix the mass every hour and send it back to the freezer.
We wait until the parfait freezes. We put it in a bowl and serve it to the guests.