The Magical marriage of of Tomato juice, Clam Juice and Vodka. A Caesar, sometimes referred to as a Bloody Caesar,after the similar Bloody Mary, is a cocktail popular mainly in Canada. It typically contains vodka, clamato (a blend of tomato juice and clam broth), Worcestershire sauce, Tabasco sauce, and is served on the rocks in a large, celery salt-rimmed glass, and typically garnished with a stalk of celery and wedge of lime.