ESPRESSO MARTINI --- Sophisticated, edgy and unexpectedly strong. -- Ingredients :- 1 part Kahlúa & 2 parts Vodka & 1 part Espresso.--- It’s just a matter of mixing booze with coffee. Shake the Kahlúa, Absolut Vodka and espresso together with plenty of ice. Strain into a cocktail glass to get rid of all the small ice chips. Tip: Shake for like 10 seconds for optimal frothiness.