I watched a documentary on my flight last week called The Donut King. It revolves around a Cambodian refugee family that fled the Khmer Rouge controlled Phnom Penh to California. Father of the family gets his start as a baker at Winchell's Donuts before he acquires his own store and then proceeds to build a donut shop empire through the late 70's and early 80's. He also helps other Cambodian families start up their own shops. Dunkin Donuts was trying to get into California, but they couldn't make it work with the Cambodians and their pricing.

To this day in California, 95% of the independent Donut shops are Cambodian owned.