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Roast Head of Cauliflower with Silky Mushroom and Gruyère Sauce

A warm, rich dish featuring roasted cauliflower topped with a creamy mushroom and Gruyère sauce, perfect for a cozy dinner or as an impressive side dish.
Prep Time 15 minutes
Cook Time 1 hour 15 minutes
Total Time 1 hour 30 minutes
Course Main Course, Side Dish
Cuisine Vegetarian
Servings 4 servings
Calories 350 kcal

Ingredients
  

For the creamy mushroom sauce

  • 2 tablespoons butter
  • 1 small onion, diced
  • 8 ounces cremini mushrooms, sliced
  • 2 cloves garlic, chopped
  • 1 teaspoon thyme, chopped
  • 1/4 cup dry white wine (or broth)
  • 1/4 cup vegetable broth or chicken broth
  • 1/2 cup cream
  • 1/2 cup parmigiano reggiano (parmesan), grated
  • 1 tablespoon white miso paste (optional)
  • Salt and pepper to taste

For the roast head of cauliflower

  • 1 large head of cauliflower
  • 1 tablespoon oil
  • Salt and pepper to taste
  • 1/2 cup gruyere, shredded (optional)

Instructions
 

Creamy Mushroom Sauce

  • Melt the butter in a pan over medium heat, add the onions and mushrooms and cook until the mushrooms release their liquids and it's absorbed, about 10 minutes.
  • Add the garlic and thyme, cook for a minute.
  • Deglaze with the wine, then add broth and cream.
  • Bring to a boil and simmer until thickened, 2-4 minutes, then mix in the cheese and miso. Remove from heat. Season with salt and pepper.

Roast Head of Cauliflower

  • Preheat oven to 450°F (230°C).
  • Brush the cauliflower with oil, season with salt and pepper, and roast on a baking pan until tender, about 50-75 minutes.
  • Pour the mushroom sauce over the cauliflower, sprinkle with gruyere, and broil until the cheese melts, 3-5 minutes.
  • Slice and serve topped with extra mushroom sauce.

Notes

Roast at high heat to get a nice browning on the outside. Cook mushrooms until the liquid is mostly gone for a deeper flavor. Use good parmesan for a richer taste; miso adds umami if you have it. You can store leftovers in an airtight container in the fridge for up to 3 days, reheating gently in the oven.
Keyword cauliflower, Gruyère, Mushroom Sauce