Wash 2 oranges very well, then cut them into small pieces without removing the peel.

In a bowl, along with the orange pieces, add all the eggs, sugar, vanilla, butter, and 1/2 of the flour. Blend everything very well.

Add the baking powder and the rest of the flour, then beat again.

Preheat the oven to 180 degrees, pour the mixture into a cake pan and bake for 40-45 minutes. (Check after 40 minutes and decide if the cake is ready)

Once baked and slightly cooled, prick it with a toothpick and pour the juice of the remaining 2 oranges over it.

Melt the white chocolate and pour it over the cake and you're done! My pan allows me to make a cake of 20 pieces.