Wash lemon hot. Peel some lemon peel. Halve the lemon and squeeze the juice. Peel, quarter and core the apples. Cut the quarter into small pieces
Boil up apples with sugar, apple juice, lemon juice and peel. Cover and cook over low heat for about 8 minutes. Remove peel
Let the compote cool down a little. Finely mash apples and pass through a sieve. Season to taste with Calvados and let cool off
Pour the sorbet mixture into a bowl (preferably metal). Place in the freezer for about 4 hours. As soon as the sorbet solidifies, stir with the cutting stick at intervals of approx. 20 minutes until a creamy ice cream mass is formed
Squirt the sorbet into pre-cooled dessert glasses or pour it with a spoon. Possibly decorate