Preheat the oven to 375ºF.
Line a baking sheet with parchment paper and set aside.
In a large bowl, cream together the melted butter and brown sugar.
Then, mix in the egg, milk, and vanilla until well combined.
Slowly mix in the flour, salt, and baking soda; stirring until well combined.
Gently fold in the chocolate chips until just combined.
Use a cookie scoop to place dough into 12 cookies on the parchment paper and bake for 8-10 minutes.
Let cookies cool for 5-10 minutes before transferring to a wire rack to finish cooling.
