Onion
Good fit1/2:1
Common substitutes for leek are Onion, with ratios below.
1/2:1
Leek is known as leeks, garden leek, french leek, allium leek, allium porrum, and wild leek.
Leek is light on sweetness, light on pungency, light on bitterness, and light on umami.
Leek is a milder, sweeter cousin of onion, best in soups, gratins, and braises where it melts down slowly. Wash well between layers to remove grit. Pairs with potato, cream, thyme, and fish. Store unwashed in the fridge, wrapped loosely, up to two weeks.
Leek has high water content. Adds moisture; can thin batters or release liquid when heated.
Yes. Leek sweetens and browns when heated.
Softens and sweetens in tarts, gratins, and savory pies. Releases moisture, so drain or cook down first to avoid soggy fillings.
Turns silky and sweet within minutes. Use low to medium heat and butter or oil so it softens without browning too fast.
Melts down into soups and braises, adding sweetness and body. Holds up well over long cook times without disappearing.
Chars nicely when halved lengthwise and brushed with oil. Outer layers blacken while the inside steams soft and sweet.
Cooks gently to a tender, mild result. Keeps color and shape better than boiling, with less nutrient loss.
Sharp and fibrous raw, milder than onion. Best thinly sliced and soaked briefly to soften bite for salads.
Can work as crispy fried leek strips, but thin slices burn fast and turn bitter if oil runs too hot.
Not used in drinks.