INGREDIENTS
4
Eggs, large
1 1/4 cups
All-purpose flour
1 tsp
Baking powder
1 1/2 tbsp
Cocoa powder
1
Fleur de sel
2 cups
Granulated sugar
3/4 tsp
Kosher salt
2 tsp
Vanilla extract
2 sticks
Butter, unsalted
8 ounces bittersweet (60 percent cacao) chocolate, coarsely chopped, such as Ghiradelli or Callebaut