1. Peel the potatoes. Cut them into pieces.
2. Grate the cheese. Chop the onion and parsley.
3. Put the potatoes and salt in a pot. Cover with cold water. Boil. Cook the potatoes until they are soft.
4. Melt the margarine in a pan. Add the onion. Cook on medium heat until soft.
5. Drain the potatoes. Mash them.
6. Add the onion, creamed corn, milk, cheese and some salt and pepper. Stir.
7. Heat up the soup. Stir often.
8. Serve with parsley on top.