Preheat your oven to 350F and line a baking sheet with parchment paper.
Cream your butter and brown sugar together for 5-7 minutes on medium until very light and fluffy.
Add your vanilla and egg yolks. Beat for a minute.
Add your flour ad combine until there are no flour streaks left in the batter
Mix in your chocolate chips and scoop your dough into balls. Top with more chocolate chips.
Bake for 10 minutes. Feel free to use a large glass to shape these cookies into perfect circles as soon as they come out of the oven.
