Cold foam has been sweeping the coffee world, but is it any different than its whipped cream cousin? We dig into the science ...

You too can try it: Combine sugar and whisky ... cold (which will help the cream rise faster). Place the whipped cream on top ...

eventually the dark watery paste turns into a thick whipped cream-esq mixture, which you can add to cold or hot milk for an iced coffee or latte-style treat. But is it as easy as it looks?