In a large bowl add the water, oil, and sourdough starter. Mix until milky and the starter is combined.
Add 2 cups of flour and the salt. Mix well. If the dough is too sticky add up to another 1/2 cup of flour 1/4 cup at a time.
The dough will be shaggy and tacky. Einkorn dough is notoriously sticky.
Cover with plastic wrap and let the dough rest for 30 minutes.
Turn the dough onto a lightly floured surface.
Lift one corner of the dough and fold it onto itself. Continue all the way around the dough.
Turn the dough over and drag across the table until the ball of dough is tight and round.
Grease the mixing bowl and place the dough in the bowl.
Cover and let ferment for 8-12 hours. You can push this to 24 hours if your house is cool or you put the dough in the fridge after 4 hours.
Preheat a cast iron skillet over medium heat.
Turn the fermented dough on a lightly floured surface and divide into 8 equal pieces.
Roll each ball of dough out to roughly 8-10 inches in diameter.
Place shaped tortillas on a lightly floured piece of parchment paper to prevent sticking.
Shape all of the tortillas and cook each tortilla in the hot skillet for 1-3 minutes per side until lightly golden brown.
Place cooked tortillas on a plate and cover with a towel to keep soft.