There used to be this bar in NYC called Crimson and Rye. I visited it a handful of times and got friendly with the bartender at the time - Max. During one of my visits, he suggested I try "Sazerac de los Reyes" as I was a fan of his Old Fashioneds. This drink changed my world. I did not get the recipe from him as the thought didn't even come to my mind, and I was not making cocktails at home.

Sadly, the bar closed during COVID, and this marvelous drink was lost to time. I know that this is a riff on the traditional Sazerac, but seeing that there are more ingredients in this version, I am kind of stumped at the ratios.

Can someone help figure out these ratios? Can I sub Genepy with Chartruese in this drink?