• Grate the onion finely,
• Take ground beef, grated onion, egg, breadcrumbs, pepper, cumin, parsley and salt into a deep bowl and knead until all mix well.
• Roll walnut-sized pieces from the mortar and press with your hands to flatten,
• In a large pan, heat enough oil to cover the bottom of a large pan and fry the meatballs in both sides,
• While the meatballs are frying, chop the pita bread and heat in the oven,

For Sauce:

• Heat the oil and add the tomato paste and sauté until it smells good,
• Add water, salt and sugar and mix, bring to a boil and remove from heat,
• Heat the butter in a different saucepan.
• Divide the pita bread on the serving plates.
• Pour melted butter on top, Place the meatballs.
• Spread the sauce over the meatballs, Serve with yogurt.