INGREDIENTS
1
Egg yolk, large
3
Eggs, large
3 tbsp
Baking cocoa, unsweetened
2 tsp
Baking powder
1/8 tsp
Baking soda
2 cups
Cake flour
1
box Cake mix, yellow
1
Dark chocolate
10 tbsp
Powdered sugar
1/4 tsp
Salt
1 cup
Sugar
3 tsp
Vanilla, pure
3/4 cup
Espresso or extremely strong coffee, hot
1 1/4 sticks
Butter, unsalted
3/4 cup
Buttermilk
1 cup
Heavy cream
1
(225 grams) container Mascarpone
1 tbsp
Amaretto
2 tbsp
Cognac