Bring wine, sugar and vanillin sugar to the boil. Wash apples, quarter and core them. Cut apple quarters into thick slices and add them immediately to the wine stock. Cover and let simmer at low heat for 3-4 minutes. Lift out the apple slices and let them drain
Pour the wine stock through a fine sieve into a high cooking pot. Add eggs, lemon peel, lemon juice and starch and mix until smooth. Whisk over low heat for 10-12 minutes, stirring continuously, until the sauce rises and thickens
Arrange apples and wine mousse on 4 dessert plates. Sprinkle with pistachios. If desired, decorate with apple slices and mint
Dry, semi-dry or sweet white wine can be used for the wine mousse. However, so that it does not become too sweet, the amount of sugar should be carefully dosed and seasoned in between