Preheat oven to 350 degrees and line a baking sheet with a silpat mat or parchment paper.
In a large mixing bowl, or mixer with the paddle attachment, mix the butter and sugars together until creamy.
Add the egg and vanilla on low speed until combined.
Next add the flour, baking soda, and salt on low speed. Mix just until combined.
Fold in the chocolate chips.
With a cookie scoop or small spoon, scoop into balls and place a few inches apart on prepared cookie sheet. Sprinkle a little espresso salt on top.
Bake for 10-13 mins just until set. Slap/Bang pan on edge of counter. Let cool on cookie sheet for 5 minutes before removing to wire rack to finish cooling.