Description
This Creamy Baked Cauliflower Gratin is a classic, comforting French-inspired dish featuring tender cauliflower florets baked in a rich, cheesy béchamel sauce topped with crispy breadcrumbs and melted Gruyère cheese. Perfect as a side or a vegetarian main, it combines creamy textures and savory flavors with aromatic thyme and nutmeg for a delicious, elegant meal.
Ingredients
Cauliflower
- 3-pound head of cauliflower, cut into large florets
- Kosher salt, to taste
Béchamel Sauce
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 2 cups milk
- 1 sprig fresh thyme, plus more for garnish
- 12 turns fresh black pepper
- 1/4 teaspoon grated nutmeg
- Salt, to taste
Cheese and Topping
- 3/4 cup grated Gruyère cheese (or Comté as a substitute)
- 1/2 cup grated Parmesan cheese
- 1/4 cup fresh bread crumbs
Instructions
- Prepare the Cauliflower: Steam or boil the cauliflower florets in salted water until they are firm but tender, approximately 5 to 6 minutes. If boiling, ensure the water is well salted and drain the cauliflower thoroughly in a colander to remove excess moisture.
- Preheat Oven and Prepare Baking Dish: Preheat your oven to 375°F (190°C). Grease an 8 x 11 x 2-inch casserole dish to prevent sticking and prepare for assembly.
- Make the Béchamel Sauce: In a medium saucepan over medium heat, melt the butter. Whisk in the flour and cook until the mixture turns a tan brown roux, which develops a nutty flavor. Gradually add the milk in splashes, whisking constantly to combine after each addition, creating a thick, smooth liquid. Add the sprig of thyme, nutmeg, salt, and freshly ground black pepper. Bring the mixture to a boil while whisking continually and cook for about one minute until it thickens to the consistency of heavy cream.
- Incorporate Cheeses: Remove the sauce from heat and discard the thyme sprig. Stir the Parmesan cheese and half (1/2 cup) of the grated Gruyère into the sauce until melted and smooth.
- Assemble the Gratin: Spread a layer of the cheese sauce at the bottom of the prepared casserole dish. Arrange the cooked cauliflower florets evenly over the sauce. Pour the remaining cheese sauce over the cauliflower, ensuring everything is well coated. Taste and adjust seasoning with salt if needed.
- Add Toppings and Bake: Sprinkle the top evenly with the fresh breadcrumbs and the remaining 1/4 cup of Gruyère cheese. Garnish with additional fresh thyme if desired. Bake in the preheated oven at 375°F (190°C) for about 25 to 30 minutes, or until the top is golden brown and bubbling.
- Serve: Allow the gratin to cool slightly before serving. This dish pairs well with roasted meats, salads, or as a hearty vegetarian main course.
Notes
- Ensure the cauliflower is well-drained after boiling to prevent a watery gratin.
- Using fresh bread crumbs gives a better crunch, but store-bought can be substituted.
- Gruyère cheese adds authentic flavor, but Comté or Emmental can be used as alternatives.
- The béchamel sauce can be made ahead and refrigerated for up to 2 days.
- Adjust seasoning after assembling for perfect flavor balance before baking.
- For a gluten-free version, substitute all-purpose flour with a gluten-free flour blend.
