Prepare the dough according to the recipe and let it rise covered for 60 - 90 minutes. (but do not bake yet, just prepare the dough!)
Mix the Za'atar with the olive oil and the chopped onion to a liquid dip.
Once the dough has doubled in size, pluck it into a number of equal-sized pieces and form them into small balls. Then let it rest under a damp kitchen towel for another 10 minutes.
Preheat oven to 250 °C / 482 °F top and bottom heat. (If you have a pizza stone, preheat it on the bottom shelf)
Line baking trays with baking paper. Or use a pizza stone.
Roll out the dough balls with a rolling pin and carefully press several small hollows into the dough with your fingertips.
Spread the dough thinly with the Zatar oil mixture.
Bake the Manakish for about 4 - 5 minutes in the lower part of the oven.