Preheat Oven to 350, and line 24 cupcake tins

Combine flour, sugar, baking powder and salt in a medium bowl and set aside.

In the bowl of a stand mixer, cream butter until smooth and creamy. Add in sugar and beat for 2 minutes. Scrape sides and beat 1 more minute.

Mix in eggs, one at a time, fully incorporating and scraping sides of bowl after each.

In a large measuring cup, combine buttermilk and vanilla.

With mixer on low speed, add small amounts of dry ingredients and buttermilk mixture, alternating, beginning and ending with dry.

Mix just until incorporated, scape sides of bowl, and mix for 15 seconds more.

Fill cupcake liners 2/3 full. Bake 18-20 minutes, until toothpick inserted in center comes out clean.