1/3 oz of 151 proof rum (or overproof rum)
1/3 oz of Kahlua coffee liqueur (or coffee liqueur)
1/3 oz of Bailey's Irish Cream (or Irish Cream)
Pour kahlua into a shot glass. With a spoon, slowly pour irish cream into the shot glass on top of the kahlua. Pour the 151 rum, again with the spoon, slowly on top of the irish cream and light on fire. Blow flame out before drinking.