Making cooking To cook by steaming it. Food is cooked with steam from the boiling water under the food. By the way the food will not have direct contact with the water to a boil.
Cooking, cooked How to cook steamed. Food is prepared, cooked using steam from boiling water under the food. It would not be exposed directly to water to boil.
The food is cooked, cooked food, in a way that food steamer will be cooked by the steam from the kettle under food, depending on the food, there will be no direct contact with boiling water.