The latest flavor to be added to the Starbucks Doubleshot Energy + Coffee line is Cinnamon Dulce, a spiced latte mixture that comes in a 16 ounce can. On the flavor front, it's certainly a drinkable mixture, but not one that instantly whets the appetite the way mocha or vanilla might. There's a relatively accurate cinnamon spice to the mix, which hits your tongue on both the start and finish of the drink. In the middle, it's a relatively milky sweet flavor, with the milk taking charge over what's otherwise a mild base of coffee. That being said, this flavor is pleasant, but probably wouldn’t be something that we'd choose over the existing flavors in the lineup. On the energy front, the product gets its caffeine from natural sources (coffee and guarana), while added taurine, ginseng, maltodextrin, inositol, L-carnitine, and added vitamins aiding the drinks functionality. Packaging is all about the Starbucks logo, which has been given prominent placement on the front of the can. Otherwise, the front of the can is somewhat hard to read, with diagonal streams of color cutting across the black text. While they wisely placed the name of the flavor on the neck, it leaves the package with a certain amount of visual disconnect. Overall, this is a drinkable flavor, but it feels like a bit of a stretch to expect that this will sell well against the more recognizable flavors that are already in the lineup.