01 -
In a medium bowl, mix instant coffee, granulated sugar, and hot boiling water until well combined.
02 -
Using a whisk or electric mixer on high speed, whip the mixture until it becomes fluffy, light, and pale in color, approximately 5 to 8 minutes, scraping the sides as needed.
03 -
Place ice cubes in a glass if desired, pour in milk, then spoon the whipped coffee mixture atop the milk.
04 -
Stir the whipped coffee vigorously into the milk using a spoon and enjoy promptly.