How to Make Cold Foam

This test kitchen-approved cold foam recipe is shockingly easy to make in the comfort of your own home. Recipe developer Juliana Hale says ?it looks and tastes like it?s from a fancy coffee bar.?

How to Make Cold Foam

You'll find a detailed ingredient list and step-by-step instructions in the recipe below, but let's go over the basics:

What Is Cold Foam? 

Cold foam is frothy, milk-based topping that?s served over iced or cold brew coffee. It?s different from steamed foam, as it?s made by simply aerating milk with a frother or French press.??

Cold Foam Ingredients

These are the basic ingredients you?ll need to make coffee shop-worthy cold foam at home:?

• Milk: Skim milk works best because it?s not weighed down by extra fat or cream, but you can also use soy milk or oat milk.
• Simple syrup: Vanilla simple syrup is optional, but recommended for an extra depth of flavor. You can make your own vanilla simple syrup (see below) or buy a premade version, such as Torani.?
• Coffee: Serve the cold foam over the cold brew or iced coffee of your choice.?
• Cinnamon or nutmeg: A sprinkle of ground cinnamon or nutmeg takes each cup over the top.??

How to Make Cold Foam at Home

Froth the milk (and simple syrup, if using) together until foamy. Divide the coffee between glass mugs, then top with the cold foam. That?s it! Find the full, step-by-step cold foam recipe below.?

How to Make Vanilla Cold Foam

Here?s how to make the homemade vanilla simple syrup:?

1. Combine 3 tablespoons sugar, 3 tablespoons water, and 1/8 teaspoon vanilla extract in a screw-top jar.?
2. Screw on the lid and shake until sugar is dissolved.?

Store leftover syrup in the refrigerator. This recipe makes enough syrup for 20 drinks. Simply froth the syrup with your milk of choice to make your cold foam.?

Test Kitchen Tips

This recipe was developed in our test kitchen — check out some tips and tricks from culinary experts that might make the cooking process easier:?

• ?In previous test kitchen tests, we have tried making cold foam with 2 percent milk, whole milk, and half-and-half,? according to Juliana. ?Of all of those, skim milk makes the most stable foam with the most ease.?
• When making vanilla simple syrup, you can shake the jar well, set it down, and come back to it and it will continue to dissolve on its own. It may need just another brief shake at the end.
• For sugar-free vanilla simple syrup, combine 1/4 cup water and 2 tablespoon erythritol or monkfruit sweetener in a small saucepan. Bring to a simmer over medium heat, stirring to dissolve sweetener. Let cool to room temperature. Stir in 1/8 teaspoon vanilla. Increase to 3 to 4 teaspoons of syrup to make cold foam. Makes enough syrup for 10 drinks.