Difficulty: Intermediate (3/5)
Rinse all citrus fruits under cold water. With a serrated knife, thinly slice 1 orange, 1 lime, and 1 lemon. Place the slices in a sauté pan with the granulated sugar and 30 cl water.
Bring to a boil, then simmer gently for about 1 hour to create a light syrup. Meanwhile, peel 3 grapefruits, 6 oranges, and the remaining lemons. Cut into quarters and chill in a porcelain soup tureen.
Strain the syrup from the candied slices, then juice the remaining citrus fruits. Add 50 cl water, brown sugar, cinnamon stick, and split vanilla pod. Bring to a boil, then let cool. Pour over the citrus quarters in the tureen. Add the candied slices with their syrup, followed by the Armagnac.
Dilute the egg yolk with 1 tablespoon water. Preheat oven to 240°C (thermostat 8).
Roll out puff pastry to 3 mm thickness. Cut a circle larger than the tureen's lid. Brush with egg yolk mixture. Bake for 10 minutes, then reduce to 160°C (thermostat 5-6) for 5 more minutes. Cool slightly.
Chop the mint leaves finely. Place the baked pastry lid on the tureen to seal. Cut open to serve.
Serve in soup plates, sprinkled with chopped mint. Pair with chocolate sorbet for an indulgent finish.
Chef Hubert's culinary ideas: This elegant tureen draws from classic French techniques, balancing bright citrus with warm spices and premium Armagnac for a sophisticated dessert.
