For a drink of the day at Loyal Nine in Cambridge, Massachusetts in 2017, I was inspired by the Mr. Howell (Flor de Caña 4 Year, maple, lime, Islay Scotch)...
Don't be afraid to go with Rhum JM's agricole blanc. Such a great cocktail, we thought it deserved a garnished rim of equal parts Davidson Plum powder, sugar and salt, applied to a lime wedge moistened rim. Luscious.
On this recommendation we had to try it. And yes, big and delicious. But we were a bit uncertain about what to do with 0.3ml Angostura, as specified in the recipe. We guesstimated that six drops would be about right. Are you able to offer some precision on this? What measure did you use?