Step 1

Prep. Grab two glass coffee mugs and add ice halfway up the mugs.

Step 2

Add milk. Pour the milk into the mugs; the milk should come about ¾ of the way up the glass. Set aside.

Step 3

Combine the ingredients. In a large mixing bowl, combine the instant coffee granules, sugar, and boiling water. You need to use a bigger mixing bowl, so you have enough room to whisk.

Step 4

Whip it. Grab a whisk and vigorously whisk the mixture; it will start to turn a light caramel color. Continue to whisk until it thickens, about 3 minutes. You’re looking for a mousse-like consistency with strong peaks. You can also use a handheld mixer or a frother for this.

Step 5

Finish and serve. Spoon the coffee mixture over the milk; give it a minute, and then gently mix it with a straw or spoon. Serve.