Preheat oven to 300°F (150°C) and grease a loaf pan.
In a mixing bowl, combine the candied fruit, pecans, almonds, and walnuts.
In a separate bowl, whisk together the flour, brown sugar, baking powder, salt, cinnamon, and nutmeg.
In another bowl, beat the eggs, then add melted butter, orange juice, and vanilla extract.
Gradually mix the wet ingredients into the dry ingredients until combined.
Fold in the fruit and nut mixture, ensuring everything is evenly distributed.
Pour the batter into the prepared loaf pan and smooth the top.
Bake for 60-70 minutes or until a toothpick inserted in the center comes out clean.
Allow the cake to cool completely before slicing and serving.