It’s worth the effort to find Balkan Treat Box as it slowly rolls into the St. Louis food scene. A wood-fired oven roars inside the bright red and aqua truck, which turns out classic dishes from the Balkan Peninsula. Try the rich, chargrilled beef sausage cevapi served in a fluffy pita pocket-like somun with kaymak (a rich dairy condiment similar to labneh) and ajvar (a slightly spicy roasted red pepper-eggplant sauce). And order more pide than you think you need. The Turkish wood-fired flatbreads are addictive, topped with thick, bubbly layer of cheese and optional sliced smoked beef sausage.