
Leeks are one of those vegetables that transform completely in a hot oven — what starts out mild and a little grassy becomes sweet, silky, and deeply caramelized at the edges. This simple side is built on just a handful of pantry staples: good olive oil, salt, pepper, and a squeeze of fresh lemon that brightens everything up at the end. The trick of roasting cut-side down first lets the layers soften and steam, then flipping them gives you that gorgeous golden color that makes the whole dish look far more impressive than the effort involved. A pinch of red pepper flakes adds just enough warmth if you want a little kick, and a scatter of fresh parsley finishes it off beautifully. It's naturally free of grains and starches without any substitutions needed — the ingredient list is just clean, whole produce and olive oil from start to finish. Serve it alongside roasted chicken, grilled fish, or really anything that could use an elegant, fuss-free vegetable on the plate.
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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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