Starbucks’ newest drink is made with egg-white powder

New York (CNN Business)Starbucks just unveiled its latest coffee drink: The cloud macchiato, made with egg-white powder. The cloud macchiato comes in caramel and cinnamon flavors. The coffee company first teased the cloud macchiato during its investor day in December as an example of how the company is innovating its iced beverages. Cold drinks “have contributed to more than 80% of our beverage growth over the last two years,” Starbucks Chief Operations Officer Rosalind Brewer said at the event. Starbucks’ new cloud macchiato also may have a celebrity tie-in. Rumors swirled that pop singer Ariana Grande may be involved in the product launch after Grande and Starbucks posted matching tweets. “We’ve long been fans of Ariana Grande’s and were excited …