Leek

Using orange brightens and brings sunshine to fall and winter vegetables.

Squash is one of those vegetables that, when in season, are celebrated in Italy. It is used in pasta, stuffings, risottos, and soups. By being roasted, as it is here, the squash, like Cinderella, is transformed. It becomes the centerpiece rather than a side dish.

Almost every region of northern Italy has some version of potato-stuffed ravioli. The potato is a constant, whereas the flavoring may change, from onion to chard to raisins to pine nuts. You can come up with some of your favorites. But in my house everybody loves potato-and-bacon ravioli, even fussy kids. You can do all the cooking ahead of time if you want—just mash up the filling while it’s still warm, then refrigerate.

Your family will love this fresh flavored purée and won’t guess that it was made from what some consider scraps-the stubs from asparagus stalks and the thick green tops of leeks. And if you hate to throw away tasty, usable food, as I do, you will feel virtuous. The stubs of fresh, tender, skinny asparagus are best for this-don’t even bother if the stubs are dry, white, and woody. Likewise, use only fresh, flexible leek greens here-it’s OK if the leaves are firm and thick but not if they’re wilted, old, or hard as leather.

I love custards—when they are properly baked, that is, so each spoonful feels like velvet and truly melts on the tongue, releasing all its flavors. This is one of the most basic pleasures of eating, one that my family enjoys and that I want to share with you. Here is a custard that has everything: lots of the flavor of fresh mushrooms, dried porcini, sage, garlic, and leeks, all concentrated and deepened in the skillet, and a creamy custard that holds all these flavors in suspension. When a spoonful of this melts on your tongue, you’ll understand why I love custards. Serve it as a first course at a special dinner, or as the centerpiece of a holiday brunch. This recipe is for eight small custards and is easily multiplied to make more. The recipe details the important steps in making any custard, so, if you haven’t made one particularly successfully before, pay special attention. For uniform baking, I recommend that you use identical molds to bake up a batch, if possible. If you don’t have any, I encourage you to buy a set of inexpensive 1/2-cup ceramic molds—get eight or a dozen; either a small shallow soufflé shape or the taller traditional custard cup is fine. You’ll use them forever, I hope.

At once light and intensely flavorful, poaching with aromatics is a wonderful treatment for black bass. Here, I use spring garlic and onions, but the recipe is easily adaptable to other times of the year. Make sure you use some member of the onion family for flavor; in winter, add shaved radish, fennel . . . use your imagination. This dish goes quickly if you have your fishmonger do the work for you; just ask for the trimmings to take home for making the fumet.

I have always loved leeks, but now they have a particularly romantic context in my life. The first time I met my (then future) husband, Chip, he cooked chicken with leeks, a dish that knocked me out. (I guess I should mention that he worked as a professional chef in New Orleans for ten years.) He blanched the leeks, so they were bright green and pliable, then wrapped them around a stuffed chicken breast. It was the most beautiful, seductive presentation. Since then, every time I cook with leeks I think of that dish—and him. Leeks have an interesting, subtle flavor that suggests asparagus or salsify (a root vegetable). A lot of Americans don’t know how to use them, and they tend to be pricey. But this simple bistro presentation shows that they are worth the splurge. This is the most basic French preparation for leeks, and one of the most delicious. It’s also the recipe that sold me on them forever.

This sumptuous appetizer stars oysters in an elegant and creamy guise. The oyster mixture spills over the sides of a thick triangle of toasted, buttered bread, and the whole thing is topped off with smoky bacon and snipped chives. The flavors of this dish are great with champagne and have a holiday feel, but it’s delicious anytime you can get great oysters. You could also toss the warm sauté with bow tie pasta for a decidedly rich Sunday supper.

Cod is a lean fish that is available year-round and can be baked, broiled, or poached. Its mild taste pairs well with sharp flavors. Other firm, mild fish, including halibut, sole, or haddock, can be used in place of cod.

Depending on the weather, serve this comforting soup hot or cold. You can quickly chill it by placing it into a metal bowl set into an ice bath; stir frequently until the soup reaches the desired temperature.

So, I know pasta and winter squash sounds like a strange combination, but I promise it’s really good. Not only that, but all the colors make this a beautiful dish as well. The easiest way to peel the squash is to cut it into quarters first, then scrape out the seeds and cut off the peel. Because they’re so hard, if I do it any other way I’m afraid my knife will slip and I’ll cut myself

I got the idea from Lidia Bastianich to make soup bases that pack a lot of flavor on the weekend, then freeze them and thaw them as needed, adding various ingredients on the fly to take them in different directions. I like to concentrate the base, which saves freezer space, and then thin it out when I make a finished soup. Before you thin it out (and jazz it up) for the final soup, this base may remind you of a certain fluffy Thanksgiving side dish (minus the mini-marshmallows, thankfully), but there are some key differences. Besides the lack of cream or sugar, the most important one is the cooking method: Rather than boiling peeled cubes of sweet potato, I like to roast them, concentrating the complex flavor, which is highlighted by subtle hints of thyme and curry. This makes an especially vibrant backdrop to such treatments as Sweet Potato Soup with Chorizo, Chickpeas, and Kale (page 43). There are many other possibilities. You can sprinkle ground chipotle or pimenton (smoked Spanish paprika) for heat and/or smoke, or add toasted pecans, yogurt (or sour cream or crème fraîche), and other sausages or cured meats.

This layered, all-in-one brunch casserole is great for when you’re serving four or more people because it can be prepped before your guests arrive. It’s an old-time casserole with the added flavor of leeks and some delicious homemade fried onion straws on top.

In the spring we go to the farmers’ market for morels and in the fall for chanterelles. Either mushroom is wonderful in this dish, as are cremini, oysters, hen o’ the woods, trumpets, porcini, and portobellos. One cautionary note: Know your mushrooms, and never eat any that you pick yourself unless you are absolutely certain they’re edible. See Alice in Wonderland for the effects of eating the wrong mushrooms or speak to someone at your local emergency room for details.

Afine choice for a spring menu, although good whenever you can find fresh asparagus, this frittata has an especially nice flavor because the asparagus and leeks are roasted and caramelized before being added. If you like, roast the vegetables a day ahead of time and refrigerate them until ready to use.

I ate this rather soothing way with lettuce twice last week, once for lunch, accompanied by a piece of salmon, the second time for supper, with nothing but a hunk of soft farmhouse bread, the sort with a dusting of white flour on top. Light, juicy, and clean tasting.

Modern pasty recipes, especially those in the more touristy enclaves of Britain’s farthest southern county, stretch the recipe almost as far as Titus, swapping beef for pork, the rutabaga for apple, even daring to crimp the finished turnover on the top instead of at the side. I make one without meat, in which I use goat cheese and thyme along with the usual starchy filling of potato and rutabaga. It is filling, yet somehow soft and gentle, too.

I say fontina because that is what I had in the kitchen last time I made this—it’s a fondue cheese that melts sublimely and doesn’t overpower the leeks. But Taleggio, another milky Italian, would be just fine, too.