You can replace the milk with water or leave it out.
For cookies, roll teaspoonfuls of dough into balls and place on well greased baking sheets. Press down with the back of a spoon. Sprinkle some sugar on top and bake at 350 degrees F (175 degrees C) until the edges brown slightly, about 15 minutes.
There is a potential risk of foodborne illness from the consumption of raw flour.