# Step-by-Step Directions:
01 - Add the heavy cream, milk, and vanilla syrup to a tall, narrow glass or milk frother.
02 - Use a handheld milk frother, electric whisk, or shake vigorously in a tightly sealed jar for 30 to 60 seconds until the mixture is thick, smooth, and has doubled in volume.
03 - Gently spoon the cold foam over iced coffee or cold brew and serve immediately.