Firewater Gives Madam's Habanero and Pineapple Margarita the Perfect Slow Burn

At first glance, the Madam looks innocent enough. But inside this margarita from the new Birmingham, Mich., restaurant of the same name inside the Daxton Hotel is an ingredient Aparium Hotel Group consultant Greg Wasserman is calling firewater, and that’s not an exaggeration.

He makes it by macerating habaneros (seeds and all) in grain alcohol...