1/2 a fluid ounce or 1.5 centilitres of Creme de Menthe
1/2 a fluid ounce or 1.5 centilitres of Kahlua
5 drops of Advocaat

(Works best when drinking with friends). Pour the creme de menthe and the kahlua into a shot glass, and then carefully add several drops of advokaat. With a straw, carefully suck up the drops of advokaat, then as quickly as possible knock down the drink. As soon as you've finished, put your straw back into the shot glass and with your hand cupped over, suck in the 'fumes' left behind and try not to choke!!