Bring water to a boil and add even-sized potatoes. Add just enough water to cover the potatoes. If the potatoes are unpeeled, you do not need salt in the water. (Cooking the potatoes with the peel on saves nutrition.)
Quickly bring potatoes to a boil and cook until easily penetrated by the tip of a sharp knife, about 20 to 30 minutes.
Let simmer, do not overcook or they will become soggy and fall apart easily. Drain immediately.
Return to low burner, shake pan gently to prevent sticking, and continue steaming until ready to serve. Note: The potatoes will not become mealy if cooled and reheated.
Ekte Norsk Mat–Authentic Norwegian Cooking is available for purchase, through the Vesterheim bookstore. Call toll free at (800) 979-3346.