Add more milk if you need to by the tablespoon: dough should be very stiff and smooth.
Mix in the chocolate chips.
Bake in a 350 degree oven on a Silpat lined cookie sheet, About 8-11 minutes for golf-ball sized balls of dough.
When they are turning just golden, they should be done. Let cool for 5 minutes before moving to a cooling rack, store in an airtight container, preferably in the freezer!