
Bubbling, golden, and deeply comforting, this cauliflower gratin is the kind of side dish that quietly steals the show at any dinner table. Tender florets get blanketed in a silky Gruyère béchamel — built from butter, flour, and whole milk — then finished with a buttery panko crust that crisps up beautifully in a hot oven. The nutmeg adds a subtle warmth that makes the whole thing taste far more sophisticated than the effort involved. For anyone navigating tree nut restrictions, this recipe is naturally worry-free: every ingredient is straightforward, with no exotic nuts hiding in the sauce or topping. Gruyère melts into the béchamel with a rich, slightly funky depth that makes this feel indulgent without being heavy. A five-minute rest before serving lets the sauce settle into something almost custardy around the edges, and a scatter of fresh parsley at the end keeps it looking sharp. Whether it's alongside a roast or holding its own as a vegetarian centerpiece, this gratin is the definition of a reliable crowd-pleaser.
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Preheat the oven to 400°F (205°C). Bring a large pot of generously salted water to a boil. Add the cauliflower florets and cook for 4 minutes, until just barely tender when pierced with a knife but still holding their shape. Drain in a colander and let steam-dry for 2 minutes.
Melt 3 tbsp butter in a medium saucepan over medium heat. Add the flour and whisk constantly for 1 to 2 minutes, until the mixture turns a pale golden color and smells faintly nutty.
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