Dalgona coffee is a South Korean whipped coffee drink made by beating instant coffee, sugar, and hot water into a stiff, caramel-coloured foam, then spooning it over cold or hot milk. The technique is simple but the ratio and whipping time are critical to getting that signature thick, mousse-like texture.
Use a medium-sized deep bowl to prevent splashing during vigorous whisking. A narrow, tall vessel works better than a wide, shallow one as it keeps the mixture concentrated for faster whipping.
An electric hand mixer cuts whipping time from 10 minutes to 2-3 minutes. A balloon whisk works but requires significant arm endurance. A milk frother wand is not powerful enough to achieve stiff peaks.
A transparent glass shows the layered effect of white milk beneath caramel foam. Fill with ice for the cold version or use warm milk for a hot Dalgona.
Precise measurement of the 1:1:1 ratio is essential. Two tablespoons each of instant coffee, sugar, and hot water is the standard single serving.
Add 2 tablespoons of instant coffee, 2 tablespoons of granulated white sugar, and 2 tablespoons of hot water into your mixing bowl. The water should be freshly boiled or very hot. Cold or lukewarm water dramatically slows the whipping process and produces weaker foam.
Beat the mixture on high speed with an electric mixer for 2-3 minutes, or vigorously by hand for 8-12 minutes. The mixture will progress from dark brown liquid to a lighter, caramel-coloured foam. Stop when the foam holds stiff peaks that stand upright without drooping when you lift the beater.
Fill a tall glass with 200-250ml of cold milk and add ice cubes if desired. Whole milk provides the richest flavour and best visual contrast. Oat milk and almond milk both work well for a dairy-free version. The milk should be very cold for the best layered presentation.
Use a spoon or spatula to gently dollop the whipped coffee foam on top of the milk. Do not stir it in yet. The foam should sit on top in a thick layer, creating the signature two-tone appearance that defines the drink.
When ready to drink, stir the foam down into the milk to combine. The first few sips through the foam layer are intensely coffee-forward, while stirring creates a balanced, creamy iced coffee. Some drinkers prefer to sip through the foam without mixing.
Taste and adjust sweetness by adding more milk to dilute or a drizzle of vanilla extract for complexity. For a hot version, use steamed milk instead of cold and omit the ice. Dalgona also works well with cocoa powder or matcha mixed into the foam before whipping.
After several minutes of whipping, the mixture remains liquid or only slightly frothy with no body.
The foam holds shape briefly but collapses within a few minutes of sitting on the milk.
The finished drink is overwhelmingly sweet or the coffee flavour is too harsh and one-dimensional.
