Bierock

Bierock (pronounced somewhere between "brock" and "brook" in Nebraska and "beer-rock" in Kansas and Oklahoma) is a yeast dough pastry pocket with savory filling, originating in Eastern Europe, possibly in Russia. The dish is common among the Volga German community in the United States and Argentina. It was brought to the United States in the 1880s by German Russian Mennonite immigrants. Other spellings are bieroch, beerock, berrock, bierox, beerrock and kraut bierock in the U.S, and pirok or kraut pirok in Argentina.