Place all ingredients in a blender and blend at highest speed for about 1 minute. Pour into a glass and drink with a straw.
Notes: This recipe works best if everything is very cold. (If you have just brewed fresh coffee, combine it with the milk and refrigerate for 30 minutes.) If the drink is not frothy after blending, add more milk, or a little powdered milk. The froth gradually turns to liquid, so you can nurse this drink for about 30 minutes and more iced coffee will continue to appear in the glass. Very refreshing.