Core and coarsely chop the apples. Put everything except the vodka in a pot. Boil until the apples are soft. Puree in a mixer and strain through a sieve. Leave it to cool down a bit. Pour it into the ice cream machine and add the vodka. Wait until you have the perfect ice cream consistency.
Crispy Apple skin with sugar and cardamom: Put the oven on 100 degrees (250 Fahrenheit) Peel the apples, as thinly you can. You just want the skin! Whisk the egg white with a fork, dip the apple skin into the egg with, cover them with sugar and then sprinkle with cardamom. Whack it into the oven for 2 hours until they are crispy. Open the oven and just leave it to sit for another couple of hours.