This is an intriguing combination. I suspect the particular grappa/vermouth combo will have a lot of influence on the result. I used Bellini Grappa del Chianti and Carpano dry, and Fee orange bitters. Carpano dry was selected for its more complex garden herb character. The Drambuie's moderate honeyed Scotch blended well with the grappa yielding a slightly woody/freshly shelled walnut.
This is an intriguing combination. I suspect the particular grappa/vermouth combo will have a lot of influence on the result. I used Bellini Grappa del Chianti and Carpano dry, and Fee orange bitters. Carpano dry was selected for its more complex garden herb character. The Drambuie's moderate honeyed Scotch blended well with the grappa yielding a slightly woody/freshly shelled walnut.