Combine flour, salt and baking powder in a bowl and set aside.
In the bowl of your stand mixer, cream together butter and sugar over medium speed with your paddle attachment. Add vanilla and egg and beat until just combined.
Add flour mixture and beat over medium speed until combined.
Roll tablespoon sized balls of dough and place on a lightly greased or parchment paper lined baking sheet.
Bake for 9-11 minutes until lightly golden on the bottom. When done, a toothpick should run through the cookie clean. Transfer cookies to a cooling rack.