1. 1. Combine the foam ingredients: In a medium-sized mixing bowl, add the instant coffee granules, granulated sugar, and hot water. It’s important that the water is hot, as this helps the coffee and sugar dissolve properly and contributes to the whipping process.

2. 2. Begin whipping: Using an electric hand mixer on medium-high speed, start whipping the mixture. If you don’t have an electric mixer, a whisk and some energetic arm work will do the trick, though it will take longer.

3. 3. Watch for transformation: Continue whipping. Initially, the mixture will be dark and watery. As you whip, it will gradually lighten in color and thicken. You’ll notice it becoming more opaque and airy.

4. 4. Achieve stiff peaks: Keep whipping until the mixture forms stiff peaks. This means that when you lift the whisk or beaters, the foam holds its shape and doesn’t collapse. It should be light brown, thick, and very frothy, resembling whipped cream.

5. 5. Prepare your glass: Fill a serving glass about two-thirds of the way with ice cubes.

6. 6. Add the milk: Pour your chilled milk over the ice cubes.

7. 7. Top with foam: Gently spoon the whipped Dalgona coffee mixture on top of the milk. You can create a beautiful swirl or simply dollop it on.

8. 8. Serve and enjoy: Your homemade Dalgona coffee is ready! Serve immediately and stir before drinking to combine the creamy foam with the cold milk.