Preheat your oven to 325°F (160°C) and prepare an 8-inch round cake pan by greasing it with butter and lining with parchment paper.

In a large mixing bowl, cream the softened unsalted butter and granulated sugar together on medium speed for about 5 minutes until light and fluffy.

Add the large eggs one at a time, mixing on low speed until completely incorporated.

Sift together the all-purpose flour, ground almonds, and mixed spices, then fold them into the batter along with the dried fruits.

Pour the batter into the prepared pan and bake in the preheated oven for approximately 1 hour, checking for doneness.

Once cooled, roll out the marzipan on a surface dusted with icing sugar and place it on the top of the cake.