1 1/2 oz of Vodka
1 oz of espresso (or coffee)
3/4 oz of Kahlua coffee liqueur (or coffee liqueur)
1/4 oz of Bailey's Irish Cream (or Irish Cream)
Make the espresso and place in a cocktail shaker half-filled with ice cubes. Add the vodka, Kahlua coffee liqueur and Bailey's irish cream. Shake vigorously and strain into a cocktail glass. Serve.