2 1/2 cups flour (plus more for rolling out cookies)
1/4 tsp baking soda
1/4 tsp kosher salt
2 sticks room temp butter
3/4 cup sugar
1 tsp vanilla
Whisk together flour, baking soda & salt. Beat together butter & sugar until smooth. Add egg and beat until fluffy. Add vanilla and beat until mixed. Gradually, add dry mixture until just incorporated. Shape dough into a disc, wrap in plastic, chill for at least 1 hour before shaping.
Bake at 350 degrees until slightly browned.