Wash the strawberries thoroughly and remove the stems. Using ripe berries will give the foam a naturally sweet flavor and beautiful pink color.
Pat the strawberries dry before blending. Excess water can make the foam thinner than desired.
Place the strawberries, heavy cream, and vanilla extract into a small blender. These ingredients create the base of the cold foam.
Make sure the cream is cold, as chilled cream whips and thickens more effectively.
Blend the mixture for about 1–2 minutes until it becomes smooth, airy, and fluffy. The strawberries should be completely incorporated.
Once blended, taste the mixture and add sweetener as needed for your preferred level of sweetness.
If you prefer not to use a blender, combine strawberry jam, heavy cream, and vanilla extract in a mason jar. This method is perfect when you're short on time.
Seal the jar tightly and shake vigorously for 2–3 minutes until the mixture becomes thick and creamy. A handheld frother also works well.
Taste the cold foam and add more sweetener if necessary. If using strawberry jam, you may need less sweetener because the jam already contains sugar.
For a stronger strawberry flavor, add a little more jam or a small amount of freeze-dried strawberry powder.
Spoon or pour the cold foam over iced coffee, cold brew, matcha latte, milk tea, or smoothies. The fluffy texture creates a beautiful layered look.
Serve right away for the best texture and enjoy the creamy strawberry goodness.