Step 1

Heat oven to 325ºF. Trim the leeks of any roots. Slice each leek lengthwise through the bulb, then once more to make quarters — if you are only making the braised leeks, it’s OK to keep the leek end intact; if you are making the pasta, cut enough of the root off so that the leek does not stay intact (see notes above). Fill a large bowl with water and submerge the leeks in it. Swish them around and carefully bend the pieces, using your fingers to release any dirt trapped between the layer of the bulbs.

Step 2

Once clean, lift out the leeks, drain, and place in a snugly fitting roasting pan or Dutch oven — ideally something that can go on both the stovetop and oven if you plan on making the pasta — no more than two layers deep. If your leeks are extra long, cut them to fit.

Step 3

Add the remaining ingredients. Cover and place in the oven. Braise until the leeks have dulled in color and are quite tender to a knife, and bend and flex effortlessly, about 45 – 50 minutes. Taste for salt. Cool to room temperature before storing. Store in the fridge for up to 1 week or in the freezer for 3 months.

Step 4

Meanwhile, if making the pasta, bring a large pot of water to a boil. Add 2 tablespoons kosher salt. Cook pasta al dente (times will vary according to package). Reserve at least a cup of pasta cooking liquid — I like to transfer the noodles from the pot using my spider or tongs, thereby reserving all of the cooking liquid. The extra pasta cooking liquid is so nice to have on hand for heating up day-old pasta.

Step 5

Place the pan of braised leeks on the stovetop over low heat. Transfer the cooked noodles to the pan with the leeks and toss with tongs to combine. Add pasta cooking liquid as needed — I’ve been adding at least 1/2 cup. Shave parmesan to taste over top and season with fresh cracked pepper to taste as well. If you seasoned your pasta cooking liquid as directed, you should barely need any salt here, but taste, and adjust seasonings as desired.

Step 6

If using herbs, add them, and toss to coat. Serve, shaving more parmesan and cracking more pepper over each serving if desired.