Dilution is key to this fruity sweet 'n' sour cocktail, hence, depending on your ice, the Charlie Chaplin may benefit from the addition of a splash of...
I love this drink, tart and sour but the sloe gin adds a touch of sweetness to it, nicely balanced but next time I will do 1 oz each instead of 3/4 oz to last a little longer. I do a hard shake for 60 times to get the necessary dilution. Happy Birthday Charlie!