Add 7 cups of confectioner's sugar and beat again until it's a dough-like consistency. It will seem stiff and dry at first but after a minute or two it will come together. If it is too dry to form balls after you are done mixing (this is rare), add in a tablespoon of milk and mix again.
7-8 cups powdered sugar
Form into small one-inch balls and place on waxed paper.
Roll each ball in the confectioner's sugar and flatten slightly with your fingertip, a fork, the back of a spoon, or a tiny seasonal stamp.
Allow mints to dry for a few hours before storing. If they will be eaten in a day or two, I leave them out at room temperature in an airtight container. For longer storage, place in the refrigerator.
Remember, you can easily tint with food coloring to match the occasion if desired. Wedding shower, baby shower, holidays, etc.