INGREDIENTS
4
Egg yolks, large
2
Eggs, large
15 oz
All-purpose flour
1 1/2 tsp
Baking powder
1 tsp
Baking soda
1
Baking spray with flour
1/3 cup
Brown sugar, packed light
2 oz
Chocolate, unsweetened
1/3 cup
Cocoa powder, unsweetened
10 oz
Confectioners' sugar
1 1/2 cups
Granulated sugar
1 tsp
Kosher salt
3 1/2 tsp
Vanilla, pure
1/3 cup
Vegetable oil
10 oz
Butter, unsalted
1 cup
Buttermilk
2/3 cup
Sour cream