Leeks are in season again. After a long bountiful summer of tomatoes, zucchini, artichoke, beans and tomatoes, more tomatoes — fall vegetables are back at the markets and it’s the time to start roasting.
This is not only my favorite way to prepare leeks, it’s one of my favorite ways to prepare vegetables, period, and leeks are incredibly versatile and always a hit.
They are a stellar companion alongside simply grilled fish and lentils. Or together with braised carrots and a roast chicken. I make them with a good steak and very crispy roasted potatoes. The possibilities are endless.
This method is inspired by the wood-roasted vegetables from The River Cafe Cookbook Two (yellow). It is not exactly a recipe, and can be adapted to other vegetables and modified using different vinegars (apple cider, sherry) or perhaps lemon juice, and an array of herbs (rosemary, sage, marjoram, chillies…) depending on the mood. It is especially important to use very good quality ingredients.
Red wine vinegar
Salt and freshly ground black pepper
Preheat the oven to 375ºF (190ºC).
To clean the leeks, trim the roots at one end and darker leaves at the other, peel off the tough outer leaves, keeping only the tender green and white hearts, and thoroughly wash of any grit. Cut the stalks into 2-inch (5cm) pieces, then halve each of these lengthwise.
In a large bowl, create a dressing of sorts with the vinegars, crushed garlic, olive oil, and picked thyme leaves. As in a vinaigrette, the proportions should be approximately two thirds olive oil, one third vinegar(s). In this case I would do half balsamic/half red wine.
Toss the leeks in the dressing until well coated. Season generously with salt and pepper. Place the leeks in an oven-proof dish large enough to fit them in one layer. Slide the dish into the oven and roast for a good hour. Every 20 minutes approximately, gently toss the leeks. The leeks should be well caramelized and meltingly tender. Don’t hesitate to leave them in the oven a little longer than you think.