Step 1

First, make the dalgona coffee cream. In the bowl of a stand mixer fitted with the whisk attachment (or a medium bowl if using a whisk, handheld electric mixer, or milk frother), combine the coffee and sugar. Add the hot water and immediately whisk on medium-high speed until light, airy, and doubled in volume, 2 to 4 minutes.

Step 2

Serve immediately. Pour the milk over the ice in a tall glass. Use a rubber spatula or cookie dough scoop to scrape the dalgona coffee cream over the milk. Garnish with a dusting of cocoa powder. Serve immediately with a straw.