Feeling a bit under the weather, I needed a warm, hearty meal for dinner, but did not want the heaviness associated with most comfort meals. I had a couple of leeks in the fridge, then discovered this rustic recipe from Americas Test Kitchen, fulfilling my craving perfectly. The aroma emitted during the sauteing of the leeks in butter is intoxicating. Red potatoes are a must. They are waxy and low in starch so as to not become water-logged. Cooking the potatoes so they were tender but not mushy was the key. Of course, I like a little bit thicker soup, so I doubled the flour amount – just make sure…