Peel the mango and cut into slices. If you bought the nuts whole, clean them first. Remove the butter from the refrigerator. Line a baking pan with parchment.
Heat the butter in a frying pan along with the brown sugar until completely dissolved. Pour the contents of the pan into a baking dish.
In a separate container, alternately beat the ingredients for the dough: butter with sugar, then add 2 eggs and from the third egg add only the yolk, then baking powder, salt, vanilla sugar and half the flour. Beat well with a whisk or blender.
Squeeze the juice from the oranges and add to the mixture. Beat well again and add the remaining flour. Mix the dough until smooth, without lumps.
Place mango slices in a circle and place finely chopped nuts in the center. Fill the mango with dough and place in a preheated oven for 30-40 minutes. Then let the pie cool and when serving, turn it over onto a plate.
Mango and orange juice pie is best served the same day it is made. You can decorate it with thin slices of fruit.