Pre-soak the Fruits: In a large bowl, combine raisins, apricots, cherries, cranberries, dates, and candied peel. Pour brandy over the fruit and let soak overnight, covered, at room temperature.
Prepare the Dry Ingredients: Preheat your oven to 300°F (150°C). Line your baking pan with parchment paper. In a separate bowl, whisk together flour, baking powder, salt, cinnamon, nutmeg, and cloves.
Cream the Butter and Sugar: In another large bowl, cream the butter and brown sugar until fluffy. Beat in the eggs one at a time.
Combine Fruit and Dry Ingredients: Drain any excess brandy from the fruit. Toss the soaked fruit and nuts with the flour mixture, coating evenly. Fold the fruit and nut mixture into the creamed butter mixture.
Bake the Fruitcake: Pour the batter into the prepared pan and smooth the top. Bake for about 2 hours or until a toothpick inserted into the center comes out clean.
Cool and Store: Allow the cake to cool in the pan for 10 minutes, then turn out onto a wire rack to cool completely. Wrap tightly in brandy-soaked linen and store in an airtight container.