Egg whites
The foam on a sour: its proteins unfold when shaken and trap air, giving a silky body and a head that holds.
neutral · silky · foams
What to do with it
Classics built on it
Knowing it
- Where to buy
- Fresh eggs, or pasteurised whites in a carton, which foam nearly as well.
- Worth knowing
- Dry shake without ice first to build the foam, then shake again with ice to chill it — or the other way round, a reverse dry shake, for a tighter foam. About 20–30ml a drink.