No Bake Oatmeal Cookies

In a large bowl, combine the oats, sugar and cocoa. With clean hands, mix in the water, vanilla and butter to form a dough. Wash hands, then roll the dough into balls 1 to 2 inches in diameter. Roll balls in confectioners' sugar until thickly coated (or they will become crusty). Chill 20 minutes before serving.