Wayne Collins, this drink's creator, originally used equal parts as is usual for a classic Negroni and after trying various other formulations, I've found...
I love this drink but I serve it in a very cold glass without any ice. Stirring it with ice is good but I don't want to dilute this beauty any more than that.
This version is very frenchy but I remember a recipe on this site that called for martini bianco and luxardo bitter bianco instead of suze and lillet blanc, am I right? I'm going to try that recipe...
After what likely was too much testing -- but that's what happens when you start taking fun things somewhat seriously -- here's my final, tweaked version, which we think is balanced very well: 1 1/2 Sipsmith, 1 Dolin Blanc Vermouth, 1/2 Suze. I've subbed out the Cocchi Americano with the Dolin.
Try Tanqueray, Suze, Dolin blanc and a careful dash of Bitter Truth’s Cucumber Bitters. A few drops
Grapefruit bitters will make a great complement to the grapefruit twist.