Pure cane sugar and Egg white syrup.
Giffard Egg White is an innovative solution to create egg white based cocktails (like sours) bringing taste, texture and foam.
Use the Dry-Shake technique : Put all the ingredients in a shaker and shake vigorously. Then add ice to refresh and shake again. Strain and pour into a chilled glass.
In cocktails : Amaretto sour, Whisky sour, Pisco sour.