INGREDIENTS
1
Egg, large
4
Egg yolks, large
2 1/4 cups
All-purpose flour
3/4 tsp
Baking soda
9 oz
Bittersweet chocolate
3/4 cup
Brown sugar, packed dark
1/4 tsp
Fleur de sel
3/4 cup
Granulated sugar
3/4 tsp
Sea salt or table salt, fine
1 tsp
Vanilla extract
2 sticks
Butter, unsalted