Knead the flour, 75 g sugar, vanillin sugar, salt, 1 egg and butter in pieces with the dough hooks of the hand mixer. Then quickly work into a smooth dough with your hands. Cover and chill for about 30 minutes. For the sour cream glaze, mix sour cream, 4 eggs, pudding powder, cream and 75 g sugar until smooth. Cut the marzipan into pieces and place in a bowl with an egg.
Stir with the whisk of the hand mixer until smooth. Peel, halve and core apples. Sprinkle with lemon juice. Grease a tart tin (26 cm Ø). Roll out the dough on a floured work surface until round (approx. 28 cm Ø). Pour into the tin and press the rim. Distribute apples in the mould with the cut surface facing upwards. Pour the marzipan mixture into a piping bag with perforated spout and squirt tuffs into the hollowed apples. Place an almond on each tuff. Pour a sand casting over it.
Distribute apples in the mould with the cut surface facing upwards. Pour the marzipan mixture into a piping bag with perforated spout and squirt tuffs into the hollowed apples. Place an almond on each tuff. Pour a sand casting over it. Bake in the preheated oven (electric range: 200 °C/ convection oven: 175 °C/ gas: level 3) on the lower rack for 45-50 minutes. Let cool on a cake rack. Dust the edge with icing sugar
waiting time approx. 1 1/2 hours