Rich hazelnut fruit cake

Ingredients

• 2 1/3 cup sultanas
• 2 cups raisins, coarsely chopped
• 1 1/2 cup seeded dates, coarsely chopped
• 1 1/4 cup pitted prunes, coarsely chopped
• 2 tablespoons raspberry jam, warmed, sieved
• 2/3 cup hazelnut-flavoured liqueur
• 185 grams butter, chopped
• 1/4 cup chocolate-hazelnut spread
• 1 cup firmly packed brown sugar
• 4 eggs
• 1 3/4 cup plain (all-purpose) flour
• 1/4 cup cocoa powder
• 1 teaspoon ground nutmeg
• 1 teaspoon ground cinnamon
• 1 cup roasted hazelnuts, chopped
• 1/2 cup hazelnut-flavoured liqueur, extra
• 750 grams ready-made white icing
• cornflour, for dusting