India, March 15 -- Mixing coffee and vodka? That sounds like the start of a crazy story. To celebrate Espresso Martini Day today, whip up the drink that's made with just four ingredients and mix up a batch of this cocktail as it requires no fancy equipment. This delicious drink combines the rich flavours of coffee with the smoothness of vodka and the sweetness of coffee liqueur. Added bonus? You can show off your amateur bartending skills with this beginner-friendly cocktail....