Meet endive gratin: the cheesy Belgian twist on potatoes au gratin you need in your life! Tender endives are smothered in creamy bechamel, topped with melty gruyere, and baked to golden, bubbly perfection. And with our step-by-step photos, this recipe is totally foolproof and guaranteed to impress!
Roast: Preheat the oven to 425°F (218°C). Cut most of the tough root from each endive, leaving just enough to keep the endive intact. Cut each in half lengthwise and arrange cut side down on a baking sheet. Drizzle with olive oil, rubbing to coat evenly. Roast for 30 minutes until fork-tender.
Bechamel: Melt butter in a medium saucepan over medium heat. Add the flour, whisking to combine, and cook for about a minute. While whisking, slowly pour in the milk. Once fully incorporated, increase heat to a gentle simmer until the sauce thickens. Stir in salt, cayenne, and half of the gruyere.
Assembly: Into a large casserole dish, layer a third of the bechamel sauce, then tightly pack in the cooked endives. Top evenly with remaining bechamel and sprinkle with the cheeses.
Broil: Set the oven to broil and place the pan on the middle rack. Broil, watching closely, until the cheese is melty and golden.