Caution: Yufka leaves dry out quickly - always keep them covered with a damp cloth.
And: the quantities are not fixed - everyone has to try how much of which ingredient he wants to wrap, but it tastes like tarte flambée.
Put the oil on a plate.
Spread a yufka leaf on the work surface, a dollop of sour cream on the broad side, spread it a little and put a small dollop on the tip of the triangle so that it will stick together afterwards. Sprinkle some bacon, some cheese and some onion on the sour cream on the broad side and fold in the edges a little on the right and left, then roll up towards the tip. Turn the finished roll briefly in the oil. If you like, you can sprinkle some grated cheese on top.
Preheat the oven to 200 ° C, cover a baking sheet with parchment paper - without sticking anything on it - and place the rolls on top.
Bake for 10-12 minutes, until the rolls start to brown around the edges - serve hot.