[photo courtesy Cookie Bar]

The Cookie Bar in Lincoln Park is getting into the doughnut game.

On Wednesday, its one-year anniversary, the bakery at 2475 N. Lincoln will begin selling doughnuts -- 10 varieties daily, baked not fried -- in a pop-up format under the name Dirty Betty's.

Unlike the River North sensation Doughnut Vault, with its unpredictable hours and tweets like "3 glazed left, 350 people in line," Dirty Betty's will keep regular hours.

So, from 7 to 10 a.m. weekdays, the Cookie Bar (as Dirty Bety's) will sell only doughnuts, then close up shop until 1 p.m., when it re-opens selling its cookies and any doughnuts left over from the morning, says co-owner Joe Bova. The bakery is open Saturdays from 10 a.m. to 10 p.m., offering all its carb-laden goodness.

Bova and co-owner Jeff Steinberg are fully aware and enamored of the doughnut-as-trend. (Even Scott Harris of the Francesca's empire has a doughnut shop in the works for Bucktown.) "We fell for it years ago in Portland and Seattle," Bova says.

The Cookie Bar's spin: slightly healthier doughnuts. Or, at least, doughnuts minus the hydrogenated oils and other unnatural stuff. Flavors will include Nutella-glazed banana, blueberry with lemon glaze and ginger-Key lime. They'll sell for between $2 and $2.25 a piece.

Who's Betty? She was a character Bova developed in his former life, as an animator in Los Angeles, for a project that never got off the ground.

"Our slogan is 'Dirty Betty's, Good Clean Fun,' " he says.