3/4 oz of drambuie scotch whisky (or scotch whisky)
3/4 oz of grand marnier orange liqueur (or orange liqueur)
Pour both ingredients into a brandy snifter. Tilt glass and flame the liquor. When flamed cover it completely so no oxygen escapes (very important). You will feel a suction to the hand, pop your hand off, take the shot, and immediately cover the glass again so no oxygen escapes. Make a slight hole in between your index and thumb, and inhale as much as u can, and hold it. That is the Nitrous Oxide!