This frothy Vietnamese cocktail contains eggs mixed with beer and it's hard to beat

The decades-old Giang Cafe is delighting drinkers with a frothy beer cocktail mixed with eggs in Hanoi, Vietnam.

The staple menu item is shown in the video, filmed on July 24, being made with ice-cold beer topped with creamy egg yolks whipped with sugar and butter and is being called "the best butterbeer for adults we have ever tried".