Quartz rounds up various explanations, including this one from an aficionado: "It's like a cappuccino, except that instead of a top layer of flavorless, airy, milky foam, it's a velvety, dense foam that is mixed evenly through the drink."
Flat whites have been popular overseas for years, with both Australia and New Zealand claiming credit for inventing the drink.
Sunday, January 04, 2015
Starbucks 'Flat White'
"Starbucks has high hopes for 'flat white' drink":