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Cauliflower Gratin

Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 8 servings

Ingredients
  

  • 1 large head cauliflower cut into florets (about 6 cups)
  • 1 1/2 cups heavy cream
  • 1 1/2 cups shredded sharp white cheddar cheese divided
  • 1/2 cup grated Parmesan cheese
  • 3 tablespoons butter
  • 3 cloves garlic minced
  • 1 teaspoon Dijon mustard
  • 3/4 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon dried thyme

Method
 

  1. Preheat oven to 425°F and lightly grease a 9x13-inch baking dish.
  2. Toss cauliflower florets with 2 tablespoons melted butter, salt, and pepper, then spread on a baking sheet and roast for 15 minutes until slightly tender.
  3. Meanwhile, in a saucepan over medium heat, melt remaining butter and sauté garlic for 1 minute until fragrant.
  4. Add heavy cream, Dijon mustard, thyme, and remaining salt and pepper to the saucepan, bringing to a gentle simmer.
  5. Remove from heat and stir in 1 cup cheddar cheese and half the Parmesan until melted and smooth.
  6. Transfer roasted cauliflower to the prepared baking dish, pour cheese sauce over top, and sprinkle with remaining cheddar and Parmesan.
  7. Bake for 20-25 minutes until bubbly and golden brown on top.