Chocolate Fudge Cake

Name: Chocolate Fudge Cake
Prep time: 30 min
Cook time: 2 h
Total time: 2 h
Yield: 12 slices
Ingredients: 200 g butter, unsalted (from cows' milk); 200 g dark chocolate; 100 g water; 255 g all purpose white flour; 30 g cocoa powder (all types); 1 heaped tbsp baking powder; 185 g golden brown sugar; 185 g sugar; 3 egg, large (65-70 g); 85 g crème fraîche, min 30% fat; 200 g dark chocolate; 200 g butter, unsalted; 200 g powdered sugar