
Romanesco is one of those vegetables that looks almost too beautiful to eat ā those spiraling fractal florets turn a deep, caramelized gold in a hot oven, and the flavor is somewhere between cauliflower and broccoli with a nuttier, earthier edge. The real magic here is the brown butter finish: hazelnuts toast right in the pan alongside sliced garlic and a pinch of red pepper flakes, building layers of warmth and richness before the butter itself deepens into that signature amber, nutty fragrance. A hit of fresh lemon juice and zest at the end cuts right through the richness and keeps everything bright. For anyone navigating macadamia nut avoidance, this recipe is a genuinely satisfying way to enjoy a nut-forward dish ā hazelnuts do all the heavy lifting here, and there's no ambiguity about what's in the pan. It's the kind of side dish that quietly steals the show at the dinner table, whether you're serving it alongside roasted chicken or letting it anchor a vegetable-forward spread. Scatter some fresh parsley over the top and serve it immediately while the butter is still glossy and fragrant.
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Preheat the oven to 425°F (220°C). Arrange the romanesco florets in a single layer on a large sheet pan. Drizzle with the olive oil, sprinkle with the salt and black pepper, and toss to coat evenly, then spread back into a single layer.
Roast for 22ā26 minutes, flipping once halfway through, until the florets are deeply golden at the edges and a knife tip slides through the thickest part with no resistance.
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