Leeks Nutrition & Uses
Leeks are alliums with a mild onion flavor and a silky texture when cooked. In US kitchens they are often sauteed slowly, added to soups, baked in gratins, or used in savory tarts and potato dishes.
Nutritional profile
According to USDA FoodData Central, leeks contain water, carbohydrate, and some fiber, with more calories than very watery vegetables but still relatively light. They provide vitamin K, vitamin C, folate, and manganese.
In the kitchen
Leeks are usually sauteed, braised, roasted, or simmered into soups and sauces. They are classic in potato leek soup, quiche, braised side dishes, pasta, and cream-based pan sauces.
Choosing & preparing
Choose leeks with long white shanks, crisp green tops, and a firm feel. Avoid leeks that are wilted, slimy, yellowing, or split badly.
Flavor pairings
Leeks pair well with butter, cream, thyme, parsley, mustard, potatoes, mushrooms, bacon, chicken, white beans, Gruyere, and goat cheese. They also work well with lemon and white wine sauces.
Tips
Leeks often trap grit between layers, so slice and rinse them thoroughly. The dark green tops are tougher but useful for stock.
General food-composition information based on USDA FoodData Central. This is not medical or dietary advice; for personal guidance, consult a registered dietitian or your doctor. Page updated Aug 4, 2026.