How do you make a milkshake from scratch?

well to make a healthily milkshake that is fast and easy you will need ice milk or canned milk sugar bag or bottle syrup vanilla extract first put the milk in the bag or bottel are you can yous a cup put the ice in stir then and a little bit of sugar put the vanilla extract in the cup and stir when the ice is gone put syrup in and enjoy i hoped i helped you but you don't have to have syrup but i gives it more flavor