Enjoy your favorite picker-upper anytime you want by keeping cans of Starbucks Doubleshot Energy Coffee Beverage - Vanilla in stock. Each one contains 15 fl oz of the brand's signature blend. Fans of this Starbucks energy drink no longer need to look for a branch to get their favorite fix because it's now easily accessible and can be consumed anywhere. What makes this beverage stand out is that it's made of premium ingredients that will help you power through the day. These include guarana, ginseng and B vitamins. Starbucks Doubleshot energy coffee beverage - vanilla contains 210 calories per can.