How to cook
Crumble the chocolate into pieces, add the butter and melt it all in a water bath. Stir until fully dissolved and mixed, in order to obtain a smooth mixture.
Pour the prepared mixture into a baking form laid out with baking paper and smooth it out well. Bake 25 min. in a preheated 356°F (180 °C) oven. Cut it into squares after it cools a bit.