Starbucks’ 'secret menu' added to app with $25,000 reward for next viral drink. How can you earn it?

Starbucks’ 'secret menu' : Starbucks is launching an all-new feature in its app that’ll make ordering that off-menu or “secret” drink all the more easier. The coffee giant is also launching a "secret menu contest" to submit your own favorite beverage customizations, with the winner getting $25,000. Here's how you can earn it