
Roasted leeks are one of those quietly impressive vegetables that transform completely in a hot oven — going from sharp and grassy to sweet, silky, and caramelized at the edges. The cut sides get that gorgeous golden color while the inner layers turn meltingly tender, all with just a drizzle of good olive oil and a pinch of seasoning. Here's the thing about this recipe that makes it genuinely clever for anyone avoiding citric acid: the brightness at the end comes from a freshly squeezed lemon half, not from any processed citric acid additive or bottled juice that might contain it. You're in full control of every ingredient on that baking sheet. A scatter of flat-leaf parsley at the end adds a pop of color and freshness that makes the whole platter look like something from a restaurant. It works beautifully as a side dish alongside roasted chicken or fish, or honestly just on its own with some crusty bread to soak up the lemony olive oil pooling on the platter.
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Preheat the oven to 425°F (220°C). Line a large baking sheet with parchment paper.
Trim the root ends and dark-green tops from the leeks, leaving only the white and light-green parts. Halve each leek lengthwise, then rinse under cold running water, fanning the layers to remove any grit. Pat thoroughly dry with paper towels.
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