Any gooseberry or even currant will work with this method. So will grapes or, for that matter, any berry you choose to use. While this sorbet will store in the freezer for a week or so, after that it tends to get icy, even with the vodka. So make this and eat it relatively quick. Should not be a problem, since it tastes to good...
Pour the gooseberry juice into a bowl and sweeten it to taste. Remember that sugar helps give the sorbet a smoother texture and that our perception of sweetness decreases with cold foods, so make this pretty sweet; I use 2 cups of sugar normally.
Mix the sugar, gooseberry juice and liqueur together until the sugar is dissolved. Pour into the container of your ice cream maker and follow its directions.