Pour water at bottom as per manufacturer’s instructions. Set it to boil, reduce the heat to simmer and cover with a lid.
If you do not have a steamer, use normal pressure cooker or any large thick bottomed vessel. Place a stand at the bottom of cooker. Pour in water about 3” to 4”.
Place a flat broad vessel or plate on the stand. Use the pressure cooker lid without a whistle.
Place 4 to 5 stuffed leaves in one batch in cross manner on the plate in preheated steamer. Close the lid and steam for 10 to 15 minutes.
After 15 minutes, the colour of the leaf changes from dark sap green to olive green, and the outer rice batter becomes firm. This indicates the dumplings are cooked well.
Open the steamer lid, carefully remove the cooked dumplings from steamer. Allow it to cool for 5 minutes, if you try to unwrap when they hot, chances are they might tear the dumplings.