From The Webtender Wiki
"The Savoy Cocktail Book," by Harry Craddock, 1976 Edition
- The Juice of 1/2 Lemon.
- 1/2 Tablespoonful Powdered Sugar.
- The White of 1 Egg.
- 2 Dashes Raspberry or Grenadine Syrup.
- 1 Glass Sloe Gin.
Shake well, strain into medium size glass and fill with syphon soda water.