For Grandma’s cherry strudel, knead flour, salt, oil, vinegar, yolks and water into a strudel dough. Let the dough rest for 1 hour.
For the cherry filling, pit the cherries. Melt the butter in a saucepan and fry the breadcrumbs.
Divide the strudel dough into 2 parts. Dust the strudel cloth with flour, roll out the dough and then roll it out thinly. Cut away the edges, sprinkle half of the breadcrumbs and spread half of the cherries on top. Fold the dough and roll it up. Place on a baking tray lined with baking paper. Fill the second strudel dough in the same way.
Brush with beaten egg and bake at 180 degrees for about 45 minutes. Divide Grandma’s cherry strudel into portions and sprinkle with powdered sugar.