Polonus Deli is a European Delicatessen and market located in the heart of the Essex Street Mall near the Peabody Essex Museum. Open seven days a week, the market items are all imported, everything from pickles to cookies to teas. Sandwiches are made fresh from their wide range of cold cuts, and specialty items include homemade pierogies, veggie smoothies and panini sandwiches as well as ice cream.