Soak the chopped dry fruits (raisins, cherries, cashew nuts, and dates) in wine or rum for at least 3 days.
Prepare sugar caramel using 3/4 cup of granulated sugar.
Sift the all-purpose flour and baking powder together three times.
Mix the soaked fruits with the sifted flour mixture and set aside.
Cream the unsalted butter with powdered sugar until fluffy.
Separate the egg whites from the yolks. Add the egg yolks one by one to the creamed butter and sugar mixture, beating well after each addition.
Gradually add the flour and soaked fruit mixture to the batter, followed by the sugar caramel and grated orange rind. Mix well until combined.
In a separate bowl, beat the egg whites until stiff peaks form.
Gently fold the beaten egg whites into the batter until fully incorporated.
Preheat the oven to 150°C (approximately 300°F).
Pour the batter into a prepared cake tin.
Bake in the preheated oven for approximately 50 minutes or until a toothpick inserted into the center comes out clean.
Once baked, allow the cake to cool before serving.
Enjoy your fruit cake!