Preheat the oven to 350°F (175°C)
In the bowl of a stand mixer fitted with the paddle attachment, beat the butter and sugars together on medium speed until light and fluffy, about 3 or 4 minutes. Scrape down the sides of the bowl and add the egg yolk and vanilla and beat to incorporate.
Turn the mixer down to low and add the flour, mixing until just barely combined. Remove from the mixer and knead in the mini chocolate chips by hand to ensure they're distributed evenly.
Roll out thinly and cut shapes out of it or just roll into small balls and press with a fork - which is what I did
Bake for about 10-12 minutes, rotating the baking sheet halfway through, until they’re lightly golden brown around the edges. Allow to cool on a wire rack for a few minutes before removing the cookies from the pan and allowing them to cool completely.
So yep I think these taste amazing and you should all make them :)