To make cold foam, combine 1/4 cup of very cold low-fat milk with optional sweetener and flavoring, then froth it without heat until it is thick, pourable, and filled with fine bubbles. A handheld frother, French press, or a countertop frother with a cold setting will work. Pour the foam over iced coffee immediately, before the milk and bubbles begin to separate.
A reliable vanilla cold foam recipe
This one-drink formula follows the proportions in Starbucks’ official at-home vanilla sweet cream cold foam recipe, but it uses only ordinary kitchen measurements.
| Ingredient | Amount | What it does |
|---|---|---|
| Very cold 2% milk | 1/4 cup | Creates a light, pourable foam |
| Powdered sugar | 1 tablespoon | Sweetens and dissolves quickly |
| Vanilla extract | 1/4 teaspoon | Adds vanilla flavor |
- Chill everything. Use milk straight from the refrigerator and, if possible, a cold narrow container. Warm milk is better for hot microfoam; cold foam needs to stay cold.
- Combine the ingredients. Stir just enough to dissolve the powdered sugar.
- Froth without heating. With a handheld frother, start near the surface to pull in air, then move slightly deeper to break large bubbles into smaller ones. Stop when the foam has expanded and can still flow from the container.
- Serve at once. Add ice and coffee to the glass first, then spoon or pour the foam on top.
Three ways to froth it
Handheld frother
Use a container at least twice the volume of the milk so it does not overflow. Froth in short bursts and judge the texture rather than chasing an exact time. The goal is a glossy layer of small bubbles, not stiff whipped cream.
French press
Pour in the cold mixture, keeping the press well below half full. Pump the plunger briskly until the volume grows and the bubbles become fine. A French press can make a larger batch, but it also creates more dishes.
Countertop frother
Select the cold setting. Do not use a heat-only program. Starbucks’ salted honey cold foam instructions, for example, specify skim milk and a cold froth setting. Appliance capacities differ, so stay below the manufacturer’s maximum fill line.
Which milk works best?
Low-fat and nonfat dairy milk generally produce a lighter, airier foam because their protein can support bubbles without as much fat weighing them down. A milk-and-cream mixture tastes richer but tends to make a denser topping. For dairy-free foam, use a refrigerated “barista” oat, soy, or almond milk and expect results to vary by brand. The stabilizers and protein content matter more than the name of the plant.
Why cold foam turns out thin
- The milk is not cold enough: return it to the refrigerator before trying again.
- The container is too wide: a narrow, tall vessel keeps a handheld frother submerged and concentrates its movement.
- The bubbles are large: move the whisk a little deeper for several seconds to refine them.
- There is too much syrup or cream: both can make a light foam harder to build. Start with the measured recipe, then adjust one ingredient at a time.
- The foam disappears quickly: cold foam naturally separates; make it immediately before serving rather than storing a finished batch.
Food-safety note
Cold foam is a perishable dairy drink, not shelf-stable whipped topping. Keep the milk at 40°F (4°C) or below. FoodSafety.gov advises discarding milk that has been above 40°F for more than two hours. Make only what you need, return the carton to the refrigerator, and wash the frother and container after use.
Sources
Checked August 21, 2026.
