Leigh Kellis, owner of The Holy Donut in Portland (BDN photo by Kathleen Pierce)

Fodor’s Travel issued its list of America’s top 10 doughnut shops this month, and The Holy Donut — with two stores in Portland — made the list.

Reported the go-to travel publication: “Every bakery has its secret ingredient, and for Portland’s The Holy Donut, it’s potato. Owner Leigh Kellis uses Maine potatoes in all her doughnuts, with sweet potato, vegan, and gluten-free options rounding out the highly original menu. In addition to the sweet offerings, which include flavors like maple, coffee brandy, and dark-chocolate sea salt, Kellis also bakes an equally tempting bacon-cheddar-filled doughnut.”

The Holy Donut has been a hit since it first opened on Park Avenue about four years ago, with an appearance on television journalist Anderson Cooper’s show in 2012. Kellis the following year opened a second location in the Old Port and took her talents to the Cooking Channel for an episode of “Donut Showdown.”