Preparation : Sift flour in a large bowl, reserving 1/3 cup. Add salt and soda; mix. Make a hole in center of flour. Sprinkle with oil. Add egg, vinegar, yogurt and water gradually blending throughly. Knead for 7-8 minutes until smooth to make a medium soft dough. Divide into 2 slightly unequal portions. Shape each into a roll. Cut each roll into 8 portions. Shape into balls. Set aside. Saute ground meat and fınely chopped onions in a covered saucepan for 15 minutes or until meat is crumbly; drain. Season with salt and pepper; stir. Set aside. Roll each of fırst 8 balls into 25 cm (10 inch) circle sprinkling with flour. Place each pastry on top of another 10 minutes. Repeat some with remaining balls, but roll each into 20 cm (8 inch) circle. Chill for 10 minutes. Stretch fırst pack of pastries into a circle, 33 cm (13 1/2 inch) in diameter, by fıngers. Spread in a greased round baking pan 30 cm (12 inch) in diameter, covering edges of pan with, pastry. Spread fılling over. Stretch other pack of pastries into 30 cm (12 inch) circle. Place over filling. Seal edges of 2 pastry layers. Bake in a moderate oven for 30 minutes or until golden brown. Remove from oven. Let stand for 10-15 minutes. Cut into 12 wedges. Serve hot.
Good Apetite.