I have tried this for two days and it get's pretty good. It's a kind of tortilla(though tortilla doesn't have a rising agent I think) and it works amazing with sourdough.
100% flour plain
optional 25% butter
10-20% ripe sourdough starter
Mix all together(if you want salt too) and let autolyse for 30 min. Knead well, I kinda try to do the slaping technique(with the butter worked without not enough hydration). I then refridgirate for 1-2 hours giving a windowpane test and fold twice or more. Then shape into little balls of dough.
With the help of a rolling pin and a pit of flour you roll the dough balls into very thin circles. Put a non stick big pan on medium-high heat and when it's warm bake for 30 sec every side. You will see beautiful bubbles growing. Some tortillas may became a big bubble. Don't burn them. Store between two towels.
I tried removing the butter and it was very good too.