INGREDIENTS
3
Eggs, large
1 1/2 tsp
Baking soda
3 1/4 cups
Cake flour
1
Chocolate-buttermilk frosting
1/3 cup
Cocoa powder, unsweetened
1 1/2 cups
Granulated sugar
1 tsp
Kosher salt
2 tsp
Vanilla extract
1 cup
Butter, unsalted
3/4 cup
Buttermilk, whole
3/4 cup
Water