INGREDIENTS
1 2/3 cups
cake flour
3/4 tsp
baking powder
1/4 tsp
baking soda
1/2 tsp
salt
3/4 cup
+ 2 Tbsp granulated sugar
1/2 cup
unsalted butter (, softened*)
1
large egg
2
large egg whites
1 tsp
vanilla extract
1/4 cup
buttermilk
1/3 cup
sour cream
1 1/4 cups
fresh blueberries (, plus more for topping)
8 oz
cream cheese (, softened)
1/2 cup
butter (, softened (I prefer 1/4 cup unsalted and 1/4 cup salted))
1/2 tsp
vanilla extract
2 cups
powdered sugar