vanilla extract, 1 cup of 2% milk, and 2 large eggs.
let all your ingredients become room temperature.
combine flour, sugar, baking powder, and salt in the bowl of a stand mixer fitted with the paddle attachment. mix until the dry ingredients are combined.
with the mixer on the lowest speed, add the butter one chunk at a time, and blend until the mixture forms a grainy consistency, between 30 seconds and 1 minute. scrape down the bowl and paddle with a rubber spatula.
add vanilla, and with the mixer on low, and slowly pour in the milk. then stop and scrape and mix for another minute.
add the first egg and mix on medium-low 