What is "scho-ka-kola"

Scho-Ka-Kola is a German brand of bitter-sweet dark chocolate consumed for its strong caffeine and kola nut mix. The chocolates have a caffeine content of about 0.2 percent, which is derived from the cocoa content of 58 percent and the addition of 2.6 percent roast coffee and 1.6 percent kola nut. The chocolate is divided into wedges held in a round metal canister. The red-and-white container design and recipe have changed very little since the original launch in 1936.