INGREDIENTS
1 1/2 tsp
baking soda
1 cup
buttermilk
2 cups
cake flour
1/3 cup
cocoa powder
3 larges
eggs
2 cups
golden brown sugar
1 1/2 cups
heavy whipping cream
1 tbsp
instant espresso powder
16 oz
mascarpone cheese
3/4 tsp
salt
1 1/3 cups
sugar
3/4 cup
unsalted butter
5 1/2 tsp
vanilla extract