Add half a cup of milk to the glass of brewed coffee
Add one tablespoon of sugar to the glass and mix it
Add ice cubes to the glass
Put all ingredients in the blender and blend them for a minute
Pour the mixture back into the glass, and frozen café au lait is ready to serve
Notes
You can make café au lait with various types of milk. Whole milk is the best choice because it provides thickness and creaminess. Alternatively, you can choose skim milk to reduce creaminess.