Very nice idea! **A quick note - the recipe neglects the espresso syrup discussed in the writeup, and that is essential to the cocktail.** I think this presents as a sweet amaro cocktail - with sweetness from the Heering and syrup, fruit from the Heering, and espresso providing earthy coffee bitterness (plus the tonic itself is bitter, although not distinguishable as a flavor note). The 100ml/3+ oz of the cocktail go by very quickly - I will scale it up to a larger volume next time.