- A wildly popular cocktail, The Cosmopolitan is a simple cocktail with a big history. Often referred to as 'the cosmo' this cocktail blends vodka, flavors of cranberry, triple sec, lemon zest, and lime.On The Rocks Cocktails are spirit based, all natural, and contain no preservatives, all natural premium ingredients and only sweetened with cane sugar Begins with Effen Premium Straight Vodka from the Netherlands and blends in flavors of cranberry, triple sec and zest of lemon and lime