Cinnaholic is rolling out a grand-opening special on Friday, April 27, its first day of business in downtown San Jose.

From 10 a.m. to 2 p.m. the shop near the San Jose State University campus — the chain’s second in the Bay Area — will sell its gourmet cinnamon rolls for $1.

And they’ve concocted some signature dessert combos with San Jose in mind:

— The one named The Spartan tops one of the fresh-from-oven rolls with fresh blueberries, banana frosting and caramel sauce.

— The Shark comes with marshmallow frosting, blueberries and sprinkles.

— And the Silicon Valley is a golden combination of orange cream frosting, pretzels, pie crumbles and caramel sauce.

Founded in Berkeley, the build-your-own-cinnamon-roll concept got its big break when entrepreneurs Shannon and Florian Radke went on TV’s “Shark Tank” with their vegan desserts that are free of dairy, lactose, eggs and cholesterol.

In San Jose, husband-and-wife franchisees Xicayan Posadas and Lizzeth Flores caught the show and were hooked. “The first draw was they’re vegan,” Flores said. “And they were very well received by everyone on the ‘Shark Tank,’ which isn’t always the case!”

Posadas, who is vegan, has a background in the bakery business, as has shop manager Elisa Juarez.

Their Cinnaholic rolls will come out of the oven every 15 minutes so that customers are always guaranteed a warm dessert. Along with regular-size rolls there are Baby Buns and sheet-style Cinnacakes, which serve six, eight or 12 people.

You can customize your roll with nearly 40 frostings and toppings, including fruit, nuts and cookies.

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Tyler Florence’s Wayfare Tavern fried chicken pop up in Redwood City, Walnut Creek Coffee, juices, almond milk, brownies and cookies also will be served. “We guarantee everything in these four walls to be vegan,” Posadas said.

Details: Cinnaholic’s inaugural hours will be 10 a.m. to 10 p.m. Monday-Saturday, noon until 6 p.m. Sunday at 115 E. San Carlos St. at Third, San Jose. The rolls will be available via Door Dash starting Monday, April 30. www.cinnaholic.com.