Unicorn Distillery's Butterfly Pea Vodka starts out as a bright blue color, but it changes to purple then pink as acid is added. A color-changing cocktail led a sales executive out of the software ...

One sip of this gorgeous color-changing cocktail and you’ll be falling in love. With a flowery, sweet beginning and light, bright finish, this festive cocktail is the perfect “night-in” beverage for ...

A cocktail called the Disco Sour contains butterfly pea flower, which causes a drink to change color, in Charleston, S.C., June 14, 2016. The extract is frozen in a blue ice cube, and once the drink ...