While I think the elderflower is a bit too dominant, I also think I'm confusing it a bit with/for the absinthe. My initial impression was that this was a unique drink, and definitely one of the few immediate and rare likes for drinks containing elderflower. Well done.
I thought 30ml of st Germain was going to be too much, but the balance was perfect, with no one flavour predominating. Added some extra drops of absinthe over the top for extra aroma. (And I was strangely out of fresh grapes for garnish on this occasion.) Slipped down all too easily! I used Armagnac as it was to hand, but might need to go cognac shopping to try as written…
We really enjoyed this cocktail on a rainy, cool May afternoon. I did reduce the St. Germain to 3/4 oz. and it was the perfect balance for us. The absinthe comes on strong, but it quickly shares the stage with the bourbon, elderflower and cognac for a delicious, smooth, complex finish. This will go into our rotation for sure.
Invested in a bottle of elderflower since it features in so many interesting cocktails. This one is great. Upped the absinthe to 5ml and still very palatable