Apple and plum layer cake

Name: Apple and plum layer cake
Cook time: 2 h
Total time: 2 h
Yield: 16
Ingredients: 4 Eggs (size M); 400 g Sugar; 1 package Vanillin sugar; 1 pinch Salt; 60 g Flour; 60 g Cornstarch; 1 TEASPOON Baking Powder; 7-10 Tbsp grated rind of 1/2 untreated lemon; 750 g Plums; 10 sheets Gelatine; 200 ml dry white wine; 1 pack of Pudding powder "Vanilla Flavor"; 5 medium sized apples (approx. 175 g each); 7-10 Tbsp Juice of 1 lemon; 3 TABLESPOONS Calvados (French apple spirit); 250 g Mascarpone; 250 g Low-fat curd; 100 g Whipped cream; 7-10 Tbsp ground pistachios