Mix in the melted chocolate with the butter, then adding the flour
1 ¾ cup flour - type 00
Pour the mix into the pan and cook in the oven at 355 F - 180 C for exactly 25 minutes
Take it out of the oven and let it cool down completely,
before taking it out of the pan and cutting it into squares.
Place the square on a plate and serve them dusted with icing sugar
icing sugar
Video
Notes
Using the right pan is very important as you don't want them too thick nor too thin. The dimention is 13 in x 10 in - 33 x 25 cm
Butter and cover a rectangular pan with parchment paper. The butter under the parchment paper will help to keep it in place when you pour the batter.
You can melt the chocolate and butter in a bain-marie, over a pot of boiling water, or in the microwave. If you are using the microwave make sure you don't put it at high power otherwise the chocolate will burn.
Make sure the butter and the chocolate are room temperature when you add them to the mix otherwise they will cook the eggs
Since there is no raising agent, you need to make sure that the butter and the egg are well whisked and foaming as that is what makes them soft
Before you remove them from the tray wait until they are at room temperature