INGREDIENTS
3 cups
cake flour
1 tbsp
baking powder
1/2 tsp
salt
1
vanilla bean, split lengthwise and seeds scraped out
1/2 cup
unsalted butter (2 sticks), at room temperature
2 cups
sugar
5
eggs, at room temperature
1
and ¼ cups buttermilk (I did not have buttermilk so I used mixed up a powder buttermilk with water)
1 tbsp
vanilla extract
1
and ½ cups butter, plus 2 tablespoons (3 sticks, plus 3 tbsp.), at room temperature
3 cups
confectioners' sugar, sifted
salt
1
vanilla bean, split lengthwise and seeds scraped out
2 tbsp
heavy cream
1 tbsp
vanilla extract