When we think about chocolate, we usually refer to three kinds: white, milk, and dark. These treats have been a part of our lives for decades. From snacks to drinks, chocolate satisfies the craving of millions of people around the world. It is estimated that every year, about 7.2 million metric tons of chocolate are consumed worldwide. Being such a mature market, no one expected an addition to the family. However, in 2017, a Swiss chocolate maker Callebaut announced the existence of a fourth type of chocolate—Ruby Chocolate.