Rarely comment despite constant use of the site but this is phenomenal. And I say that as someone who likes boozy drinks with no citrus (other than garnish) and who actively dislikes fruity things and vodka cocktails. The balsamic was revelatory. Didn't measure 5 drops as intended. Just came out in a small stream with my finger over and then incorporated with a cocktail stick. Pepper and balsamic would seem to be underutilised in the cocktail world after this.