The bite-sized doughnut balls served at Yanni’s Greek Donuts—which opened in Lucky Labrador Brew Pub’s parking lot in December—come in three flavors and sizes, retain heat well ...

But their most common style — a ring formed of eight interconnected balls of chewy goodness — was popularized by the chain Mister Donut, which is dominant in Asia but actually has local roots.

Open for about eight years and with two locations now, Cardigan Donuts in Minneapolis has been crowned the place with the ...