Cauliflower and Brussels Sprout Gratin with Pine Nut-Breadcrumb Topping

A luxurious gratin combining tender brussels sprouts and cauliflower florets in a rich cream sauce, topped with a crispy mixture of breadcrumbs, pine nuts, and Parmesan cheese. This elegant side dish is perfect for special occasions or holiday meals.

8 servings
1 hr 25 min

Ingredients

  • pounds brussels sprouts
  • pounds cauliflower
  • cups heavy whipping cream
  • ½ cup chopped shallots
  • 1 tablespoon chopped fresh sage
  • tablespoons olive oil
  • ½ cup plain dry breadcrumbs
  • ½ cup pine nuts
  • 2 tablespoons chopped fresh Italian parsley
  • 3 cups grated Parmesan cheese
  • divided

Cooking Instructions

  1. 1.

    Fill large bowl with ice and cold water. Cook brussels sprouts in large pot of generously salted boiling water 2 minutes. Add cauliflower to same pot; cook until vegetables are crisp-tender, about 3 minutes longer. Drain. Transfer vegetables to bowl of ice water to cool. Drain well.

    5 min

  2. 2.

    Combine cream, shallots, and sage in large saucepan. Bring to boil. Reduce heat; simmer until mixture is reduced to 21/2 cups, about 10 minutes. Season with salt. Remove from heat. Cool slightly.

    10 min

  3. 3.

    Heat oil in large nonstick skillet over medium heat. Add breadcrumbs; stir until beginning to brown, about 2 minutes. Transfer to bowl; cool. Stir in pine nuts and parsley. Season with salt and pepper.

    5 min

  4. 4.

    Butter 13x9x2-inch glass baking dish; arrange half of vegetables in dish. Sprinkle with salt and pepper, then 1 1/2 cups Parmesan. Arrange remaining vegetables evenly over, then sprinkle with remaining 1 1/2 cups Parmesan. Pour cream mixture evenly over. DO AHEAD: Breadcrumb topping and gratin can be made 1 day ahead. Cover separately and chill. Bring to room temperature before continuing.

    10 min

  5. 5.

    Preheat oven to 375°F. Cover gratin with foil. Bake covered 40 minutes. Uncover; sprinkle breadcrumb topping over and bake uncovered 15 minutes longer.

    55 min

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