While some people use sliced apples that are first cooked, which may give a less soggy strudel, in these parts most people make strudel with grated apples.
Grate apples and gently squeeze out excess juice. Spread over the pulled dough, fold over any hanging sides and cover with apples as well. Sprinkle over top sugar, raisins, breadcrumbs, and cinnamon. Sprinkle again with melted butter. Continue as stated above.