This is how to froth cold milk with hand frother to make cold foam for coffee or Starbucks refresher drinks at home. Easy and cheap homemade from scratch
Add all ingredients into a jar, swirl it around to combine. Use your handheld frother into the jar moving it up and down for 20-30 seconds until it thickens to resemble frothy whipped cream.
Use a spoon to scoop it out and transfer on to the top of your iced drink.