DETROIT - The two-bite chocolate craze plowing through Hamtramck and Detroit will extend its reach to Ann Arbor this summer.

Alexandra Clark, owner of of Bon Bon Bon, said she's opening the confectionery's third location in less than a year "sometime this summer" in the entryway of the former Jerusalem Garden location in Ann Arbor.

Clark said Bon Bon Bon is joining another Detroit company, which will fill the restaurant space at the 307 South Fifth Ave. location.

A popular Detroit pop-up restaurant is rumored to be filling the space.

For now, though, Clark could only speak for Bon Bon Bon's involvement at the building.

She said Bon Bon Bon will be selling their artisan chocolates at $3 a piece as a "pop up with potential" three days a week in a "very tiny" space in the front of the Fifth Avenue location.

Clark, who is fond of expanding into smaller, more intimate shops, said she'll be occupying about 50 square feet of space when she opens in Ann Arbor.

In April, she opened her second location, expanding from Hamtramck (where it all started last July) to downtown Detroit.

By the end of the summer, Bon Bon Bon will have a 600-square-foot home base in Hamtramck, a 400-square-foot store in the Chrysler Building in downtown Detroit and a miniature pop-up spot in Ann Arbor.

All of the locations feature Clark and company's delectable chocolates.

Related: Bon Bon Bon ready for downtown Detroit shop opening

Clark studied chocolate for eight years total at various venues, and worked for a few high-end chocolatiers before moving back to Michigan to open her own shop.

And that shop took off.

Bon Bon Bon would sell out of over 2,000 bonbons on a Saturday -- the only day they were open for retail business.

All told, Bon Bon Bon has over 70 flavors of bonbons in their cache. At any given time, they're selling 32 different flavors, which are made in 72-chocolate batches.

The chocolates vary greatly, with some bonbons filled with different ganaches, while others are topped with candied fruit.

Each chocolate is handmade, and almost everything in the chocolates was made from scratch, too.

Bon Bon Bon even has their own chocolate and hazelnut spread they make for one of their bonbons.

Clark said she's excited to bring Bon Bon Bon to Ann Arbor.

"We've been pretty busy in Detroit," she said, "but we couldn't pass on an opportunity to work with such good people in a place that really has never seen chocolate quite like this before."

At $3 a piece, the 1.5-inch-long rectangular chocolates consistently sell out despite the team making thousands of chocolates each week.

The popularity stems from the variety. Each chocolate has a unique look and number, and none of them have a closed top because Clark wants her chocolates to be easy to identify.

"I'm sort of anti mystery chocolate," Clark has said.

The Birthday Cake bonbon is topped yellow frosting and sprinkles; the Sweet Potato Pie is topped with a bit of pie crust from Sister Pie; the S'Mores, toasted marshmallow fluff; the PB&J has a peanut on top.

And while all of the bonbons are nice to look at, most of the flavors will throw customers' tastebuds for a loop.

Clark and company offer everything from a Sticky Bun or Creme Brulee bonbon to Mac 'n' Cheese, Bacon and Eggs or Coney Spice, a Mexican-style chocolate.

Clark is constantly inventing new flavors, too.

She said Friday that a new employee has been hired for the Ann Arbor location.

There was no set date to open the shop's first location outside of Detroit.

Bon Bon Bon is open six days a week in Detroit, and only Saturdays at their Hamtramck location.

Ian Thibodeau is the business and development reporter for MLive Media Group in Detroit. He can be reached at ithibode@mlive.com, or follow him on Twitter.