INGREDIENTS
3
Eggs + 3 egg yolks, whole
1 tsp
Baking powder
1 tsp
Baking soda
3 3/4 cups
Cake flour
1 cup
Cocoa powder, unsweetened
2 cups
Granulated sugar
1 1/2 tsp
Kosher salt
4 cups
Powdered sugar
2 tbsp
Vanilla
3 sticks
Butter, unsalted
4 sticks
Butter, salted
1
cup Buttermilk
1/4 cup
Greek yogurt
4 tbsp
Heavy whipping cream