"They're sophisticated, and they're culturally very open (to trying new foods)," he said.
Dunkin' Donuts' mainstays are doughnuts and coffee, along with muffins and more solid lunch foods, such as bagels. Then the chain offers variations to please local tastes.
In London, where the chain has recently opened three shops, it sells a savory snack called "Bacon Buttie," as well as porridge.
Is that porridge as in, well, oatmeal?
"Hot cereal, yes," Vitaro says. "We also do a Croistrami sandwich, that's a pastrami croissant. So we do localize. We have a curry doughnut in India."
Joost Kling, a Dutch food industry entrepreneur, thinks the chain will face something of an uphill battle in the Netherlands.
"They don't have much name recognition, if any," he said. "I think a lot will depend on their staying power." He wondered about the willingness of the firm to advertise and lose money for a time when stores first open.
Kling has some experience going the opposite direction. His company, "Eat Dutch Waffles," has brought the Dutch delicacy known as "stroopwafel" a hot waffle cookie filled with syrup into 1,000 American stores and bakeries.
He guessed around a half of Dutch people know what doughnuts are, but most have only tried low-quality versions on offer in grocery stores.
"A stroopwafel tastes very different when it's fresh, and it's the same for a doughnut," he said. Europeans "won't really have any basis for value comparison: they don't know what makes a good doughnut."
In addition, Europeans may feel attachment to their own local delicacies.
In Belgium, the Brussels waffle is light and fluffy and dusted with powdered sugar, while in Liege they're heavier and sweeter, with caramelized sugar. The "Belgian Waffle" topped with powdered sugar, strawberries and a flourish of whipped cream is probably an American invention. It's popular in Scandinavia.
In Austria, people with a sweet tooth turn to Apfelstrudel or Danishes.
In Denmark they also eat Danishes, of course. But the Danes in turn call them "wienerbrod," or 'Viennese bread,' since, as lore has it, the treat was introduced by Austrian bakers once upon a time. Cinnamon is a favorite flavor.
Vitaro said Dunkin' Donuts is already interviewing would-be franchise owners and plans to open several stores in each new market by the end of 2014, focusing on major cities first, with "many more" coming in early 2015.
"We believe our basic offer of speed and value and fun will connect well with consumers," he said. "It has so far."