Whole Roasted Cauliflower with Rich Cheese Sauce (Cauliflower Gratin)

A stunning twist on the classic cauliflower cheese, this whole-roasted version creates an impressive centerpiece that’s both elegant and comforting. The humble cauliflower is transformed into a showstopping dish with a luxuriously creamy cheese sauce and golden-brown crust.

Ingredients

For the Cauliflower

  • 1 large whole cauliflower head (approximately 1kg/2.2 lbs)
  • Salt for boiling water

For the Cheese Sauce

  • 50g (1.7 oz) butter
  • 2 tablespoons all-purpose flour
  • 400ml (1⅔ cups) heavy cream
  • 100g (3.5 oz) cheese, grated (divided)
  • Salt to taste
  • Freshly ground black pepper

Step-by-Step Instructions

  1. Prepare the Cauliflower
  • Remove leaves and trim stem of cauliflower
  • Bring large pot of salted water to boil
  • Cook whole cauliflower for 15 minutes until tender but firm
  • Drain well and place in baking dish
  1. Make the Cheese Sauce
  • Melt butter in a saucepan over medium heat
  • Add flour and whisk for 1-2 minutes
  • Gradually pour in cream while whisking constantly
  • Cook until sauce thickens (3-4 minutes)
  • Add half the grated cheese
  • Season with salt and black pepper
  • Stir until smooth
  1. Assembly and Baking
  • Pour sauce over cauliflower
  • Top with remaining cheese
  • Bake at 200°C (395°F) for 13-15 minutes
  • Until golden brown and bubbling

Timing

  • Prep Time: 10 minutes
  • Cooking Time: 30 minutes
  • Total Time: 40 minutes

Nutritional Information (per serving – serves 4)

  • Calories: 380
  • Protein: 12g
  • Carbohydrates: 15g
  • Fat: 32g
  • Fiber: 4g
  • Calcium: 220mg

Pro Tips and Tricks

  • Don’t overcook the cauliflower during boiling
  • Let cauliflower drain thoroughly to prevent watery sauce
  • Warm cream slightly before adding to roux
  • Use freshly grated cheese for best melting
  • Rest for 5 minutes before serving

Variations and Substitutions

  • Mix different cheeses (cheddar, gruyere, parmesan)
  • Add mustard powder to cheese sauce
  • Sprinkle with herbs before baking
  • Use half-and-half instead of cream for lighter version
  • Add nutmeg to the sauce for depth

Common FAQs

Q: Why is my sauce lumpy?
A: Whisk constantly and add warm cream gradually to prevent lumps.

Q: Can I prepare this ahead?
A: Yes, assemble up to 24 hours ahead and bake before serving.

Q: What cheese works best?
A: Sharp cheddar is classic, but any good melting cheese works.

Q: How do I know when the cauliflower is done?
A: Pierce with knife – should be tender but still firm.

Storage and Make-Ahead Tips

  • Store leftovers in refrigerator up to 3 days
  • Reheat in oven at 180°C (350°F) until hot
  • Sauce can be made ahead and refrigerated
  • Don’t freeze – affects texture significantly
  • Can prepare entire dish day before baking

This whole roasted cauliflower transforms a humble vegetable into an elegant, satisfying dish that’s perfect for both family dinners and special occasions. The combination of tender cauliflower and rich, creamy cheese sauce creates a memorable side dish that might just become your new weekly favorite. The golden-brown crust and molten cheese sauce make every bite a perfect balance of textures and flavors.