sentence: There is also the `` Mehlspeisen '' Bakery , which created particular delicacies such as Sachertorte , `` Krapfen '' which are doughnuts usually filled with apricot jam or custard , and `` Strudel '' such as `` Apfelstrudel '' filled with apple , `` Topfenstrudel '' filled with a type of cheese curd called `` topfen '' , and `` Millirahmstrudel '' ( milk-cream strudel ) .