
Ingredients
- Cupcakes:
- 1 1/4 c. cake flour
- 3/4 c. butter, room temperature
- 3/4 c. sugar
- 1 1/2 t. baking powder
- 1/4 t. fine sea salt
- 1/4 c. milk, room temperature
- 1/4 c. buttermilk, room temperature
- 1 t. vanilla extract
- 1 large egg, plus 1 egg white
- Vanilla Buttercream:
- 1 c. butter (2 sticks), room temperature
- 2 1/2 c. powdered sugar
- 2 t. milk
- seeds of 1/2 vanilla bean
- pinch of fine sea salt
Directions
- Preheat oven to 350°, center rack. Line a 12 portion standard muffin pan with cupcake liners.
- In a bowl, whisk together the flour, baking powder and salt. In other bowl, whisk together the milk, buttermilk and extract. In a stand mixer with whisk attachment: combine the butter and sugar, beat medium, 2-3 minutes. Scrape down sides. On low, add the whole egg, increase to medium and beat until incorporated. Scrape down sides, repeat with egg white.
- On med-low, add the dry mixture, alternating with the wet in three additions of dry, i.e., dry, wet, dry , wet, dry, scraping between additions. Mix just combine on last addition. Mixture will not look completely smooth.
- Fill liners 3/4 full with batter -- do not overfill or cake will bake slightly concave. Use two scoops of the large cookie scoop. Bake 20, 25 minutes until toothpick comes out clean from center. This cake has a flat top -- will not dome. Allow to cool before frosting.
- Beat the butter until fluffy on medium, stand mixer fitted with whip. Turn to low, add powdered sugar by 1/4 cup until incorporated. Add milk, vanilla bean bits, extract and salt. Increase to med-high, beat a minute or two until light and fluffy.