Preheat the oven to 350 degrees F. Line two baking sheets with parchment paper.

In a large mixing bowl, beat together the butter, brown sugar and sugar until combined. Add the eggs and vanilla, beat until combined and creamy. Add the flour, baking soda, salt, and water or milk, beat until combined. Stir in the chocolate chips.

Scoop the dough out into tablespoon size balls and place 2 inches apart on the prepared baking sheet. Bake the cookies on the center rack of the oven for 9-10 minutes. The cookies will not look completely done, but they will continue to cook on the baking sheet. Allow the cookies to cool 3-5 minutes on the baking sheet and then transfer to a cooling wrack.