You can steam the wontons for 8-10 minutes in a covered metal or bamboo steamer. If you don’t own a traditional steamer, you can make your own makeshift one. Brush a plate with a little oil and place 10-12 wontons top, or as many wontons can fit on the plate when leaving some space in between of each wonton. Fill a large wok or pan with water up to 2-3-inches high. Place a metal kettle ring, or even rolled up aluminum foil balls or an empty (clean) can of tuna in the center wok to give some height between the wontons on the plate and the water. Bring the water to a boil over high heat. Reduce the heat to medium-low once boiling, and place the plate on top of the item of choice in the center of the wok. Cover and steam for 8-10 minutes, or until the wontons have cooked through.