4 parts gin
2 parts lemon juice
2 parts sugar syrup
1 part grenadine syrup
1 egg white
6 parts sparkling water (soda)

ice cubes

longdrink glass

Put all ingredients, except the sparkling water, and some ice cubes in a shaker and mix. Strain (the ice cubes you used for mixing stay in the shaker) into an ice-cube-filled longdrink glass and fill with sparkling water. Stir slightly.

If possible use fresh squeezed lemon juice. There´s at least 1 oz. (= 3 cl) of juice in every lemon.