Streuselkuchen
Streuselkuchen (German pronunciation: [ˈʃtʁɔʏzl̩ˌkuːxn̩] ; "crumb cake"), also known in English-speaking countries as crumb cake, is a cake made of yeast dough covered with a sweet crumb topping referred to as streusel. The main ingredients for the crumbs are sugar, butter, and flour, which are mixed at a 1:1:2 ratio.