Porrusalda (Basque Potato Leek Soup)

There is something of a debate about cooking technique that occasionally rears its head in our house. On the one side, there is the practice of long, slow cooking. Soups and sauces are simmered for several hours, developing surprisingly deep flavors and smooth textures. On the other, there's the desire to cook fast and furious over high heat, and take the soup pot off the stove because come on it's done enough and I'm really hungry! I'm embarrassed to say that I represent the latter camp.

Whenever I manage to quiet my impatient grumbling and let something simmer for the alloted time, I'm usually floored by the results. This soup is an especially good example of the startling transformation that can be achieved through slow cooking. As in much of Basque cooking, the emphasis isn't on a handful of spices or flashy additions, but on a careful treatment of fresh vegetables. The ingredients are as humble as they come -- just a handful of root vegetables and some water -- but the resulting soup is full of flavor.

Porrusalda (Basque Potato Leek Soup)

as interpreted by Iñaki Guridi
yields one large pot

Traditionally, the potatoes aren't cut with a knife, but broken into rough-edged pieces that release more starch to thicken the soup. To do this, slide a paring knife halfway through a peeled potato, about 1.5" down. Press the potato between your thumb and the knife, and twist to free a chunk roughly 1.5" square (although, of course, it won't be square). Repeat until the whole potato is reduced to rough chunks.

2 Tbsp olive oil
1 clove garlic, sliced into thick rounds
3 waxy red or yellow potatoes, peeled and broken into chunks (see note above)
4 leeks, washed and sliced into 1" rounds
4 large (or 6 small) carrots, peeled and sliced into 1/2" rounds
water to cover
salt to taste

Heat the olive oil in a large heavy soup pot over medium heat. Add the garlic and potatoes, and saute for a few minuts. Add the leeks and carrots, and saute for another minute. Add water to cover by 1", and a bit of salt. Bring to a boil, then reduce the heat to a simmer. Simmer, covered for about 2 hours (or, ideally, longer), stirring occasionally. Season to taste with additional salt.