Preheat oven to 375 degrees. Line a baking sheet with parchment paper and set aside.
Melt the butter then set aside to let cool.
Mix flour, salt, and baking soda in a medium bowl.
In a separate bowl cream together the butter and sugars. Make sure the butter is not hot when you do this step. Do not overmix the dough.
Add the egg and vanilla, mix until fully incorporated.
Add the dry ingredients, mix until combined.
Add chocolate chips and fully incorporate.
Prepare a baking sheet by lining it with parchment paper. Scoop and portion all of the dough into balls onto the baking sheet. You'll have to crowd them together to make them all fit onto the pan. That is okay because you're not baking them on this pan, only chilling the dough.
Chill the dough balls in the freezer for 15 minutes. After that, place some of the dough onto a separate cookie sheet about 2 inches apart. Place the rest of the dough into the refrigerator between batches.
Bake 8-10 minutes. Remove from oven when the edges are barely starting to brown. They will not look completely done. Cool on cookie sheet 3-5 minutes before transferring to a cooling rack.