Combine flour, salt and baking soda in a bowl and set aside.
In the bowl of your stand mixer, cream together butter, peanut butter and sugars over medium speed with your paddle attachment. Add vanilla and egg and beat until just combined.
SSlowly add flour mixture until fully combined. Fold in chocolate chips.
Drop spoonfuls of dough onto a lightly greased or parchment paper lined baking sheet. Bake for 9-11 minutes. When done, a toothpick should run through the cookie clean. Transfer cookies to a cooling rack.