Peel half of the pineapple, remove the stalk and dice the pulp. Beat the fat and 125 g sugar with the whisk of the hand mixer until foamy. Stir in the eggs one after the other. Add cream. Fold in flour, baking powder and lemon zest.
Line the bottom of a springform pan (26 cm Ø) with baking paper. Fill in the dough and smooth it down. Bake in the preheated oven (electric cooker: 175 °C/ gas: level 2) for about 20 minutes. Let it cool down on a cake rack. Mix mascarpone, vanilla sugar and remaining sugar with the whisk of the hand mixer. Whip cream in 2 portions until stiff and fold into the mascarpone. Cover the base with a cake ring. Add the mascarpone mixture and smooth it down. Place in the refrigerator for approx. 2 hours. Sprinkle Jelly Bellys over the cake.
Whip cream in 2 portions until stiff and fold into the mascarpone. Cover the base with a cake ring. Add the mascarpone mixture and smooth it down. Place in the refrigerator for approx. 2 hours. Sprinkle Jelly Bellys over the cake. Cut the rest of the pineapple into thin slices. Decorate the cake with pineapple and possibly mint