Vanilla Bean Cake with Strawberry Buttercream

INGREDIENTS

1 1/2 cups

unsalted butter, at room temperature ((3 sticks))

2 2/3 cups

sugar

egg whites (at room temperature)

4 1/2 cups

all-purpose flour

2 tbsp

baking powder

1 tsp

salt

2 cups

buttermilk (at room temperature)

vanilla bean (split & scraped or 1 tablespoon vanilla bean paste)

1 tsp

pure vanilla extract

1 1/2 cups

unsalted butter, ((3 sticks) at room temperature)

6 cups

confectioner's sugar (sifted*)

1 cup

fresh strawberries

1 tsp

vanilla extract