Cassata Siciliana Tradizionale

Line a round, deep-sided cake tin (cassata mould or springform) with cling film. Prepare the Pan di Spagna: whisk eggs and sugar over a bain-marie until pale, thick, and tripled in volume, then fold in sifted flour with a light hand. Bake at 180 °C until a skewer withdraws clean and the surface springs back to a gentle press. Cool completely on a rack.

Rest the sheep's milk ricotta overnight in a muslin-lined colander in the refrigerator. The following day, press any remaining whey clear, then pass the ricotta through a fine sieve. Beat in the caster sugar until smooth. Fold in the Bronte pistachio paste. The filling must be dense enough to hold a ribbon — loose filling will collapse the cassata on cutting.

Make the green marzipan: grind the blanched, dried Bronte pistachios with the sugar to a fine, cohesive paste. Work in the glucose syrup and the smallest possible measure of water until the paste is smooth, pliable, and holds its shape when pressed without cracking. The colour should be a deep, natural green — no colouring is added. Roll between two sheets of parchment to 5 mm thickness, the minimum required for structural rigidity.

Slice the cooled Pan di Spagna horizontally into layers approximately 1 cm thick. Combine the maraschino or rum with the sugar syrup. Lay the base layer in the prepared tin and brush generously with soaking syrup: the sponge must be moist and fragrant but must not disintegrate when lifted. This is where the dish lives or dies — an under-soaked cassata is dry; an over-soaked one loses all structure under the weight of the filling and icing.

Line the inner wall of the tin with the rolled green marzipan, pressing it firmly to the sponge so no gap remains. Spoon in the ricotta and pistachio filling and smooth it level. Place a final layer of soaked Pan di Spagna over the top to seal. Refrigerate the assembled cassata overnight — the structure must be fully firm before icing.

Make the fondant icing: dissolve the sugar in the water with the glucose syrup, boil to soft-ball stage (115 °C), then work the syrup on a marble slab or in a bowl until it turns opaque, white, and smooth. Use while warm and fluid. Invert the chilled cassata onto a wire rack set over a tray. Remove the tin and cling film. With a palette knife, apply the fondant in a single, confident pass across the entire surface — it sets quickly and cannot be reworked. The finish should be smooth, white, and matte, with no visible strokes.

Immediately, before the fondant sets, arrange the sliced candied citron, orange peel, and zuccata across the top in a pre-planned geometric pattern. Transfer the finished cassata to the refrigerator. Remove 20 minutes before service so the ricotta returns to full flavour — cold dulls it. Slice cleanly with a knife wetted between cuts.