Elaborate Sicilian cake with ricotta cream, marzipan, and candied fruit is a baroque showpiece. This stunning mediterranean dessert is a family celebration centerpiece.
Trim and slice the sponge cake horizontally into 3 even layers using a serrated knife; set aside.
Line a 9-inch springform pan with plastic wrap, and press strips of marzipan (kneaded with green food coloring) along the sides to form a green border.
In a bowl, gently fold together ricotta cheese, powdered sugar, vanilla extract, mini chocolate chips, candied citron, and candied orange peel until creamy and smooth.
Lay one sponge cake layer at the bottom of the pan, sprinkle lightly with orange liqueur, then spread half the ricotta filling evenly across, pressing gently for even thickness.
Add the second cake layer, repeat by brushing with orange liqueur and adding the remaining ricotta mixture; finish with the final cake layer, gently pressing down for a firm, level top.
Cover the assembled cake with plastic wrap and chill in the refrigerator for at least 2 hours to set moisture and flavors.
Unmold the cake, invert onto a serving plate, garnish with extra marzipan decorations and an array of candied fruit for a traditional Sicilian look.