1 tablespoon olive oil
2 large leeks, white parts sliced thin (you can use more leeks if you like)
2 lb of waxy potatoes (like Yukon Gold) sliced thin.
1 quart of vegetable broth.
salt & pepper
Heat the oil and saute the leeks until they are soft, about 2-3 minutes. Add the potatoes and broth. Bring to a boil, then reduce heat to low and cover, simmering for about 30 minutes. The potatoes should be soft and break up when stirred. Just add salt and pepper to taste. Sometimes I sprinkle with fresh herbs (like thyme or chives) but it is good just plain.