On a lightly floured work surface or between two sheets of parchment paper, roll out one disc of dough at a time into a ¼-inch (5 mm) thick rectangle. Cut out the dough into ¾-inch (2 cm) wide strips. Place the cookies on the sheets, spacing them evenly. Bake one sheet at a time, for about 12 minutes
or until the edges of the cookies are lightly golden brown. Let cool on the sheets. Break into large pieces and set aside.
Assembly
In a bowl, whip the cream and sugar with an electric mixer until stiff peaks form.
At the bottom of a 12-cup (3 litre) glass serving bowl, spread ½ cup (125 ml) of the whipped cream and one-fifth of the crushed cookies. Top with half the marmalade custard. Place 8 to 10 clementine slices against the sides of the bowl and reserve the remaining slices to garnish the trifle. Add one-fifth of the cookies and half of the remaining whipped cream. Continue with one-fifth of the cookies, half the marmalade custard and another fifth of the cookies. Finish with the remaining whipped cream. Refrigerate for 12 hours. When ready to serve, top with the remaining cookies and clementine slices.
Note from Ricardo
You can use orange marmalade instead of mandarin marmalade, or, if you have a few candied clementine slices left over, simply chop them and add them to the custard.
Short on time? Replace the gingerbread cookies recipe with 5 oz (150 g) of store-bought ginger cookies.