To solve the rest of the mystery, you must walk inside, peruse the shelves and, with any luck, chat with one or both of the owners: Iskren Atanasov and Petko Georgiev, two Bulgarians who became friends at college in Washington, D.C., and eventually opened their own market specializing in the foods of their homeland as well as other Slavic regions. After graduation, the two moved to different parts of the U.S.; they reconnected when Georgiev, a native of Sofia, called Atanasov to see if he wanted to join him in a business venture in Colorado. He did, and the two took over the small shop at 1990 Wadsworth Boulevard in early 2016. The previous owner was Bosnian, so the two kept an inventory of Bosnian goods to maintain the market’s existing customer base. But they also added a deli with hot sandwiches, a meat counter with cured sausages from Bulgaria, and a selection of cheeses difficult to find anywhere else in town. You’ll usually find one of the owners at the deli counter, outfitted in a tidy chef’s coat and making sandwiches while calling out guidance to shoppers.

European market has a mind-boggling selection of a vegetable condiment called ajvar.
Mark Antonation
Compared with that, the deli menu doesn’t appear unusual or exotic at first, but even familiar sandwiches come with a Bulgarian touch. Atanasov buys his bread daily from a Bulgarian woman who bakes it at home. The prosciutto-basil sandwich starts with a soft, porous roll (similar to a round ciabatta, but with a softer crust) that’s piled with delicate cured ham and soft Bulgarian cheese. Squiggles of reduced balsamic syrup decorate the outside of the sandwich — a messy but deliberate addition that Atanasov says makes for a finger-licking experience.

The meat lover's sandwich at European Market has its roots in Bulgarian street food. The Cockta soda is from Slovenia.
Mark Antonation

A sampler platter of Balkan foods available at European Market: lukanka sausage, locally baked bread, Bulgarian feta cheese sprinkled with herbs, dolmades and bright orange ajvar.
Mark Antonation
Or just meander through the shop, reading labels and choosing whatever looks unusual and inviting for a snack or an evening meal; it’s a very European thing to do.

European Market makes prosciutto and pesto sandwiches on locally baked Bulgarian-style bread.
Mark Antonation