Preheat the oven to 350 and line a few trays with baking paper or spray with non-stick spray.

In a metal bowl, place the butter inside the bowl and place in the preheating oven.

Leave it just for a few minutes, until the butter starts to melt around the outside (approx 1/2 of the butter melted). Take out of oven to cool.

Once the butter has cooled, add both sugars and beat with a mixer until light and fluffy.

Add the vanilla and eggs, beating between each addition just until mixed.

Add the flour, baking soda and salt or sea salt and beat on a low speed, just until combined.

**If needed, add more flour, a tablespoon at a time, until the dough comes together in a ball and not sticking to the sides of the bowl.

Fold in the chocolate chips until just incorporated.  

Use an ice cream or cookie scoop (1/4 cup for large, 1.5 tablespoons for medium) and drop the dough onto the prepared baking sheets, allowing room for spreading. Pat down cookies just a little and press additional chocolate chips on top of cookie dough if desired.

Bake one tray of cookies at a time, for 10-12 minutes for large, 8-9 for small. Don't over-bake and allow to cool on wire rack.

Makes 1 dozen large or 2 dozen small cookies.