INGREDIENTS
1
Egg, large
2
Egg yolks, large
1 1/2 cups
All-purpose flour
1 tsp
Baking powder
1/4 tsp
Baking soda
3/4 cup
Brown sugar, packed light
1/2 tsp
Kosher salt
1
Maldon or other flaky sea salt
1/4 cup
Powdered sugar
8 oz
Semisweet or bittersweet chocolate
1/2 cup
Sugar
1 tsp
Vanilla extract
1/2 cup
Butter, unsalted