Sloe gin comprises such a large part of this cocktail that the style and quality of your sloe gin will dramatically affect the finished cocktail. Choose...
I liked this one. I used the Hayman's sloe gin and Chazalettes Extra Dry Vermouth. Another time, I swapped the Hayman's for Ha'Penny rhubarb gin. It was ok, but I preferred it with the Hayman's....the extra dry vermouth needs a sweeter gin perhaps. I am no expert...