1/2 oz of Cognac
1 slice of lemon
sugar
1/2 oz of cointreau orange liqueur (or orange liqueur)
Drink this just like a shot of tequila. Mix the cognac and cointreau together in the shot glass. Lick between your thumb and forefinger and sprinkle sugar on it. Then lick the sugar, drink the shot, and suck on the lemon wedge when you're done.