These are all the ingredients.
Use a fine grater to remove the zest from the orange.
Mix flour with baking powder.
Melt the chocolate and butter in a water bath.
While chocolate is heating:
Eggs+sugar+orange peel = beat.
Add the mixture of chocolate and butter, beat.
Add flour with baking powder, - beat.
Lay the baking dish with parchment (I have a Teflon Mat) and bake for 20 minutes in a preheated 180 degree oven.
The aroma is unreal!
Ready to check with a toothpick.
How to cool a bit, cut into pieces.
Sprinkle the pieces with powdered sugar.
Enjoy your meal