In a large mixing bowl, use a hand mixer to cream the butter with powdered sugar and vanilla until well mixed and fluffy.

Add in the flour and salt and mix until the dough comes together. Fold in the chocolate chips with a rubber spatula.

Cover and refrigerate the dough for approximately 45 minutes, or overnight.

Preheat the oven to 350 degrees F. Line a baking sheet with parchment paper and set aside.

When ready to bake, roll 1 tablespoon of dough into balls and place them 1 ½ inches apart on the prepared baking sheet. Bake for 14-18 minutes, until bottoms are lightly golden but the tops are still pale.

Allow the cookies to cool on the baking sheet for 5 minutes. While they are still warm, roll them in powdered sugar carefully. Put them on wire racks so they can cool completely. 

Once cookies are cool, roll them in the powdered sugar for a second time.