Williams Cocktails Espresso Martini

Espresso Martini Cocktail Espresso Martini in a Can. Ready-to-drink cocktail, served in seconds The Williams Espresso Martini is the ultimate ready-to-drink cocktail in a can—no espresso machine, no shaker, no fuss. Shake for 30 seconds, pour, and enjoy a bar-quality Espresso Martini with a perfectly silky foam layer anywhere. Pour into a cocktail glass and garnish with a few coffee beans. One can is exactly one 130 ml serving.