PRODUCT Boba, a smoothie-type drink with chewy tapioca pieces in it
HOW IT STARTED First popular in Taiwan, migrated to Canada and spread to trendy spots on the West Coast
JUDGMENT CALL Disconcerting at first, but better than a boring Frappuccino
Usually when you find something solid and chewy in your drink, it's time to call for the waiter. But that's what boba drinks are all about. They're a concoction of either tea or juice combined with milk, fruit syrup, ice and--the surprise--small marbles of tapioca. More than one person has likened drinking boba to finding a Gummi Bear...