After wash the potatoes, wrap the potatoes with a dry tissue when they are still wet, then wrap them again with plastic wrap. Heat in the microwave (500W) for 6 minutes 30 seconds, peel and mash with a fork while still hot.

Cut and separate broccoli into small pieces, and boil it in boiling water with salt until cooked, remove and drain.

Cut the onion, soak it in the cold water so that the unpleasant smell disappears.

Mix potato, broccoli, corn, onion, and butter into one bowl, add salmon slice and KEWPIE MAYONAIS ORIGINAL, mix well.