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Golden and bubbly Cauliflower Gratin in a baking dish, garnished with fresh parsley.

Cauliflower Gratin

Close-up of a smiling woman with curly dark hair sitting indoors at a cafe or restaurant.Amy Golden
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Course Side Dish
Cuisine American
Servings 6 servings
Calories 267 kcal

Ingredients
  

  • 1 large head cauliflower cut into florets
  • 2 tablespoons unsalted butter
  • 1/2 small yellow onion finely chopped
  • 3 cloves garlic minced
  • 3 tablespoons all-purpose flour
  • 1/2 teaspoon kosher salt
  • 1/2 teaspoon onion powder
  • 1 pinch nutmeg
  • 1/2 teaspoon ground black pepper
  • 3/4 cup whole milk
  • 1/4 cup sour cream
  • 3/4 cup grated Gruyère cheese
  • 1/2 cup grated Parmesan cheese
  • 2/3 cup breadcrumbs
  • Freshly chopped parsley for garnish

Instructions
 

  • Preheat oven to 375°F. Grease a 9x13-inch baking dish.
  • Bring a large pot of water to a boil. Add cauliflower florets and cook until tender but firm, about 5 minutes. Drain and set aside.
    Draining cauliflower florets for Cauliflower Gratin.
  • In a saucepan, melt butter over medium heat. Add onion and garlic, cooking until soft.
  • Stir in flour, salt, onion powder, nutmeg, and pepper, cooking for 1 minute.
  • Gradually add milk, stirring until thickened. Remove from heat and stir in the sour cream and half of the Gruyère and Parmesan cheese until melted.
    Stirring sour cream, Gruyère, and Parmesan cheese into the thickened sauce for Cauliflower Gratin.
  • Place cauliflower in the prepared baking dish. Pour the cheese sauce evenly over the cauliflower. Sprinkle with remaining Gruyère, Parmesan, and breadcrumbs.
    Pouring cheese sauce over cauliflower for Cauliflower Gratin.
  • Bake for 25 minutes or until golden and bubbly. Sprinkle fresh parsley on top before serving.

Nutrition

Calories: 267kcalCarbohydrates: 21gProtein: 13gFat: 15gSaturated Fat: 9gSodium: 590mgFiber: 3g
Keyword Cauliflower Gratin
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