Wash the raisins thoroughly. Combine the remaining ingredients and macerate the raisins in the liquid for at least 24 hours.
Bring the milk, cream, zest, and vanilla to a boil. Combine the eggs,
whites, sugar, glucose, and cornstarch.
Add the hot liquid to the egg mixture and cook to 82°C. Let cool to 60°C, then add the mascarpone and emulsify well. Pour 130 g of mascarpone cream into a Ø14 cm ring mould. Freeze at -18°C.
Whisk the eggs
with the sugar. Incorporate some of the whisked mixture into the mascarpone, then
fold in the remaining mixture. Add the
sifted-together flour and baking powder, followed
by the melted butter combined with the zest and vanilla. Finally, add the Marsala and raisins. Pour 140 g of batter into Ø16 cm moulds, place the
frozen mascarpone cream in the centre, and cover with another 140 g of
batter. Bake at 150°C for approximately 25 minutes.
Combine all the chilled ingredients.
Store at +4°C.
Prepare a custard with the
cream, vanilla, yolks, and sugar. Remove from the heat and add the gelatine
mass. Blend with the mascarpone using an immersion blender. Refrigerate for at
least 12 hours before using.
Lightly imbibe the cake with Marsala syrup right after baking. Coat the edges with slightly heated neutral glaze diluted with 10% water. Using a Saint Honoré tip, pipe out a 180 g rim of mascarpone decorative cream. Fill the centre with glazed grapes, covering the entire available space. Wrap a white chocolate band around the edge of the cake. Sprinkle the top with
a few flower petals.