INGREDIENTS
1
Egg, large
1 3/4 cups
All-purpose flour
2 tsp
Baking powder
1 1/4 cups
Powdered sugar
1/2 tsp
Salt
2
Vanilla bean
3/4 cup
White sugar, granulated
3/4 cup
Coffee, strong
1 tbsp
Espresso, powder
1/2 cup
Butter
1/2 cup
Buttermilk
1/4 cup
Heavy cream
2 1/4 cups
Mascarpone