12 oz of rock and rye liqueur (or caramel liqueur)
1 shot of 151 proof rum (or overproof rum)
Pour the Rock & Rye into a glass with ice. While the Rock & Rye is still fizzing, quickly add the 151 proof rum. Stir thouroughly before drinking. (Heavy concentrations of 151 have been known to cause a few sore throats.)