Preheat oven to 350 F. Spray a loaf pan with non-stick spray.
If the breadfruit is not 100% mush, puree it in the food processor with 1-2 tablespoons milk as needed for a smooth puree.
In a bowl, combine flour, baking powder, nutmeg and salt.
Whisk to combine dry ingredients.
In another small bowl, combine about ½ cup of the flour combination and toss the candied fruit in it. This will prevent the fruit from sinking to the bottom.
Using an electric mixer with the paddle or whisk attachment, beat butter and sugar in a bowl until smooth and creamy.
Add eggs one at a time, beating well after each addition.
Add vanilla extract and mix until combined.
Add breadfruit and mix very well, until thoroughly combined.
Add the remaining flour (not mixed with the fruit) to the batter.
Add mango juice and mix until well combined.
Add the fruit and flour combination and mix until well combined.
Transfer to prepared loaf pan.
Bake for 40-45 minutes, or until a toothpick comes out clean.
Leave to cool for at least 10 minutes in the pan.
Remove from the pan and serve.