at a time, add a splash of milk and pat together with a wooden spoon until the flour is moistened. do not stir.
dump the crumbly mixture onto a sheet of plastic wrap and shape into a rectangle about the size of a piece of paper. fold the dough by thirds like you are folding a letter. press down again to shape it back to paper-size. repeat tri-folding process three more times. if dough becomes sticky, lightly flour your hands, not the dough.
wrap tightly in plastic wrap and chill for at least 15 minutes.
*you might not use all the milk. stop adding the milk once the dough holds together when firmly 