Delicately sweet with whiskey-laced, zesty citrus, rich berry fruit and a hint of aniseed, is smoothed and rounded by egg white.
Your choice of grenadine...
Checked my 1926 copy of "Harry's ABC of Mixing Cocktails" and the listing reads:-
1 white of a Fresh Egg, 2 dashes of Curaçao (orange), 1 teaspoonful of Grenadine, ⅔ Canadian Club whisky. Shake well. Strain into cocktail glass. (Recipe from Ritz Hotel, London.)
...no lemon juice, raspberry liqueur, nor Absinthe!
I find the proportions to be a little off, at least for modern tastes...I increased the proportion of everything relative to the egg white (so 2 oz of rye whiskey) and increased the ratio of whiskey:Pierre Ferrand Orange Curacao to 2.5:1, and cut the absinthe to 1-2 dashes...that seemed to balance it out more.