A taste of Greece on the streets of Berlin

Sunny skies are a rare joy in Berlin in the springtime. "If you don't go out for a frappe on a day like this, when will you?" smiles Stella, a Greek-German resident of the city, referring to the iced coffee drink popularized by Greek cafes.

Just a few meters from her home in the district of Steglitz in southwest Berlin, there's a branch of the Greek coffee and snack chain Grigoris (or Gregory's when it's abroad).

"Some people come here to quench their nostalgia for Greece and others to try something different," she says, explaining that the Germans are not so much into the iced coffee as they are the crispy phyllo pies.

This is one of the chain's quieter branches in Berlin. According to the company's website, it started its expansion in November 2015, opening a shop in the heart of what was once East Berlin, Alexanderplatz. Two years later, it had outlets...