For the cabbage-peanut strudel, cut the onion into half rings and fry lightly with the bacon. Add the cabbage and the spices and sauté until soft. Allow to cool.
Cut the potatoes into slices, mix with the cooled cabbage, season again. Melt butter. Remove strudel dough from packaging, place on a moistened cloth.
Spread melted butter between the sheets of dough. Spread half the amount of filling on the dough, add sour cream on top and carefully roll up the strudel.
Place on a baking tray lined with baking paper. Do the same with the second strudel.
Brush with the remaining butter and bake the cabbage-peanut strudel in the preheated oven at 190° for about 30 minutes until golden brown.