Ramos Gin Fizz

60 ml (2 oz) gin
22.5 ml (0.75 oz) simple syrup
15 ml (0.5 oz) heavy cream
15 ml (0.5 oz) lemon
15 ml (0.5 oz) lime
3 dashes orange flower water
1 egg white
Soda

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Notes

By Henry Charles "Carl" Ramos at his Imperial Cabinet saloon in New Orleans around 1888
Shake for up to 12 minutes to create froth.