1 oz of peppermint schnapps
1/2 oz of dark creme de cacao (or chocolate liqueur)
1 oz of Kahlua coffee liqueur (or coffee liqueur)
Pour the peppermint schnapps, Kahlua coffee liqueur and dark creme de cacao into a cocktail shaker half-filled with ice cubes. Shake well, strain into a cocktail glass, and serve.