Put chocolate and butter in a pot and melt it on low heat. Stir and make sure it doesn’t start to boil. When it is melted, add in sugar and check that the mixture is not too hot (wait and cool it down if it is), because now you need to whisk in eggs, one by one. Also add in vanilla aroma.
Put flour, salt and cocoa powder in a bowl and stir then add it to the chocolate mixture while whisking.
Pour the batter in baking tray with baking paper. I used baking tray size 36x21,5 cm.Now you can add any toppings if you want. I used chopped almonds, chocolate drops and frozen raspberries that I defrosted. Just sprinkle it on top.
Bake it in preheated oven on 180 degrees Celsius for 35 minutes (a couple of minutes more if you used fruit). Take it out of the oven and leave to cool down, then slice and serve.