Dalgona whipped coffee uses instant coffee, sugar, and hot water in a 1:1:1 ratio to create thick foam that sits on cold milk.
Dalgona whipped coffee turns three pantry ingredients into a thick, creamy foam that sits on top of cold milk like a cloud. The technique went viral during lockdown, and for good reason: it works with a whisk, takes less than five minutes, and delivers a drink that looks impressive without any special equipment.
The 1:1:1 ratio of instant coffee, sugar, and hot water whips into stiff peaks because the sugar stabilizes the air bubbles while the coffee solids give the foam structure.
Why the 1:1:1 Ratio Works
Equal parts instant coffee, sugar, and hot water create a mixture thick enough to trap air but liquid enough to whip. The sugar dissolves into a syrup that coats the coffee particles and holds the bubbles in place.
Without enough sugar, the foam collapses within minutes. Without enough water, the mixture stays grainy and won’t incorporate air.
Instant coffee is required because it dissolves completely, leaving no grounds to weigh down the foam. Brewed coffee contains too much water and not enough solids to form stable peaks. The hot water dissolves the sugar and coffee faster than room temperature water, so you spend less time stirring and more time whipping.
The ratio scales cleanly. Two tablespoons of each ingredient makes enough foam for two servings. Four tablespoons makes four servings. The technique doesn’t change, just the bowl size and whipping time.
What Instant Coffee to Use
Any instant coffee works, but the flavor carries through. A smooth, mild instant coffee makes a sweeter drink. A darker roast or espresso-style instant coffee adds bitterness that balances the sugar.
Freeze-dried instant coffee dissolves faster than spray-dried granules, but both whip to the same texture. Avoid instant coffee mixes that contain added milk powder or flavorings, since they change the ratio and can prevent the foam from forming stiff peaks.
Ingredients
- 2 Tbsp instant coffee
- 2 Tbsp white granulated sugar
- 2 Tbsp water (hot)
- 1/2 cup milk (low fat, regular, almond, soy, goat’s milk)
- Ground cinnamon or cocoa powder, for dusting (optional)
Instructions
- In a large mixing bowl, add coffee, sugar, and hot water in equal amounts.
- If you’re whisking by hand, use a whisk to first mix the coffee, sugar, and water until everything melts together, then start whisking steadily until it forms a hard peak, this takes about 2 minutes and 30 to 40 seconds, or about 400 whisks if you’re counting.
- Use a large mixing bowl so your whisk has room to whip air in, and use a round whisk rather than a fork or spoon, which makes it much harder, tilt the bowl at an angle as you work.
- If you’re using a hand mixer or stand mixer, start at the lowest speed until the coffee and sugar dissolve, then turn it to the highest setting and mix for about 1 minute and 30 seconds, or until hard peaks form, a stand mixer takes about that long on high speed, while a hand mixer might need a bit more time but works just fine.
- If you like, make some dalgona sponge candy to add as a crunchy, sweet topping for the foam.
- Fill about two-thirds of a cup with cold milk, around half a cup, and add some ice.
- Spoon the foam on top of the milk, then add dalgona pieces if you made them, or sprinkle on some hot cocoa powder or cinnamon, you can stir it all together to enjoy it as a latte, or sip it as is so you get a little milk and foam in each taste.
Hand Whisking Versus Electric Mixer
| Method | Time | Technique |
|---|---|---|
| Hand whisk | 2 to 5 minutes | Use a large mixing bowl and tilt it at an angle. A round balloon whisk moves through the liquid more easily than a flat whisk or fork. Keep a steady rhythm. |
| Hand mixer or stand mixer | 1 to 2 minutes | Start on low speed until the coffee and sugar dissolve, then turn to high. The foam is ready when it holds stiff peaks and looks glossy. |
| Milk frother | Does not work | A milk frother doesn’t incorporate enough air to build volume. |
Common Problems and How to Fix Them
- Foam won’t thicken: Make sure you’re using instant coffee, not brewed coffee or espresso powder. Check that the water is hot enough to dissolve the sugar completely. Keep whisking; it can take up to 5 minutes by hand.
- Foam deflates after a few minutes: You didn’t whip it long enough. The mixture needs to reach stiff peaks that hold their shape. If you used less sugar than the recipe calls for, the foam won’t stay stable.
- Grainy texture: The sugar didn’t dissolve. Use hot water, not warm or cold, and stir thoroughly before you start whisking.
- Foam sinks into the milk: The foam wasn’t thick enough. Whip it longer until it holds stiff peaks. Spoon it gently onto the milk instead of pouring it.
Sugar and Milk Options
| Ingredient | Result |
|---|---|
| White granulated sugar | Whips into the smoothest foam and dissolves the fastest. |
| Brown sugar | Works but adds a molasses flavor and makes the foam slightly darker. |
| Coconut sugar or raw sugar | Can leave a gritty texture if they don’t dissolve completely. |
| Sugar substitutes (erythritol, stevia) | Don’t stabilize the foam. May whip to soft peaks but won’t hold stiff peaks or stay stable for more than a few minutes. |
| Half sugar | Foam deflates within 10 to 15 minutes instead of holding for hours. |
| Whole milk | Makes the drink richer. |
| Low-fat, almond, soy, or oat milk | All support the foam without changing the technique. |
Serve the drink cold with ice, or warm the milk gently and skip the ice for a hot version. The foam sits on top either way.
Make-Ahead and Storage
The whipped coffee foam holds at room temperature for several hours without deflating. You can make it in the morning and assemble the drinks in the afternoon.
For longer storage, transfer the foam to an airtight container and refrigerate it for up to two days. The texture stays thick, but the foam may separate slightly. Stir it gently before spooning it onto the milk.
To make multiple servings, multiply the ingredient list by the number of servings you need. Four tablespoons each of instant coffee, sugar, and hot water makes enough foam for four drinks. Use a larger bowl and add 30 seconds to the whipping time if you’re using a mixer.
Frequently Asked Questions
What is dalgona coffee?
Dalgona coffee is a whipped coffee drink made by beating instant coffee, sugar, and hot water into a thick foam, then spooning it over cold or hot milk. The name comes from a Korean sponge candy called dalgona, which has a similar color and sweet flavor.
Does it have to be instant coffee?
Yes. Instant coffee dissolves completely and contains enough solids to form stable foam. Brewed coffee or espresso has too much water and not enough coffee solids, so it won’t whip into stiff peaks.
Can I make it without sugar or with less sugar?
The foam needs the full amount of sugar to stay stable. Cutting the sugar in half makes a foam that deflates within 10 to 15 minutes. Without any sugar, the mixture won’t hold air at all. Sugar-free substitutes don’t stabilize the foam the same way.
Do I need a mixer or can I whisk by hand?
You can whisk by hand. It takes 2 to 5 minutes of steady whisking to reach stiff peaks. A hand mixer or stand mixer cuts the time to 1 to 2 minutes. A milk frother doesn’t work because it doesn’t incorporate enough air.
How long does it take to whip by hand?
Expect 2 to 5 minutes of continuous whisking, depending on your speed and the size of your bowl. Use a large bowl and a round balloon whisk to make the job easier. The foam is ready when it holds stiff peaks and looks glossy.
Can I refrigerate the foam?
Yes. Store the whipped coffee foam in an airtight container in the refrigerator for up to two days. The texture stays thick, but the foam may separate slightly. Stir it gently before using.
Conclusion
Dalgona whipped coffee proves that a simple technique and three ingredients can make something that looks and tastes special. The 1:1:1 ratio is easy to remember, the foam holds for hours, and the drink works with any milk you have on hand.
Printable recipe
Dalgona Whipped Coffee Recipe
Dalgona whipped coffee uses instant coffee, sugar, and hot water in a 1:1:1 ratio to create thick foam that sits on cold milk.
Ingredients
- 2 Tbsp instant coffee
- 2 Tbsp white granulated sugar
- 2 Tbsp water (hot)
- 1/2 cup milk (low fat, regular, almond, soy, goat's milk)
- Ground cinnamon or cocoa powder, for dusting (optional)
Instructions
- In a large mixing bowl, add coffee, sugar, and hot water in equal amounts.
- If you're whisking by hand, use a whisk to first mix the coffee, sugar, and water until everything melts together, then start whisking steadily until it forms a hard peak, this takes about 2 minutes and 30 to 40 seconds, or about 400 whisks if you're counting.
- Use a large mixing bowl so your whisk has room to whip air in, and use a round whisk rather than a fork or spoon, which makes it much harder, tilt the bowl at an angle as you work.
- If you're using a hand mixer or stand mixer, start at the lowest speed until the coffee and sugar dissolve, then turn it to the highest setting and mix for about 1 minute and 30 seconds, or until hard peaks form, a stand mixer takes about that long on high speed, while a hand mixer might need a bit more time but works just fine.
- If you like, make some dalgona sponge candy to add as a crunchy, sweet topping for the foam.
- Fill about two-thirds of a cup with cold milk, around half a cup, and add some ice.
- Spoon the foam on top of the milk, then add dalgona pieces if you made them, or sprinkle on some hot cocoa powder or cinnamon, you can stir it all together to enjoy it as a latte, or sip it as is so you get a little milk and foam in each taste.
Recipe sources
Measurements cross-checked against published recipes from kimchimari.com, seriouseats.com and allrecipes.com.
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Camille writes about botanical drinks, herbal cocktails, and the old plant wisdom that makes them work. Most days you'll find her in the garden or the kitchen, turning herbs into something worth sipping.
