Mix flour with salt, add 120 ml of olive oil. Knead by hand or blender to test. The dough should not stick to hands and well unroll.
Prepare the desired shape for the cake — lubricate it with oil. Roll out the dough (by putting it between the cling film). The thickness of the test to which aspire — 2 cm. Further, it is desirable to cool the dough.
In a preheated 200 degree oven, place the form with the dough, crushing it (like stuffing) peas and rice (to left recess onion toppings), bake until golden, 15 minutes
In frying pan, add the chopped onions into half rings and cook over medium heat for 15 minutes. Then remove the lid, add half spoon of salt and a pinch of sugar or deputy sah, stir until the onions are caramelizing and acquire a deep golden color. Add the broth and stir. Hold at heat for 5-10 minutes, add salt to taste and freshly ground pepper.
Then, let cool and place in the dough (pre-dispose of peas or rice!). In the stuffing pour whipped mixture of eggs and yogurt. Sprinkle with grated cheese and send it in the oven for 25-30 minutes. Check knife — it should not be a raw egg.