Preheat the oven to 425.
Microwave the butter till melted.
In a mixer, beat the butter with the sugars until creamy.
Add the vanilla and the egg.
Add the flour, baking soda, and salt.
Add the chips and chill 1 hour.
Scoop dough onto parchment lined cookie sheets.
Place in oven and immediately LOWER temp to 375.
Bake 9-11 mins.
Don't over bake them!
If making another batch raise oven temp back up to 425 when you take these out and repeat the process.