Beef Manti 1kgFreshly Frozen and ready to cook Premium Beef Tenderloin Manti. Traditional Juicy Uzbek style Manti. Hand made. Allergens: Wheat Cooking Method: Add water to the steamer ( Mantishnica ) and make sure the water boiling. Brush the steel inserts with sunflower oil to avoid sticking to the metal. Add frozen Manti with a 2cm gap between them as they will expand in size while cooking. Steam cook for 45 minutes.