Velvety Savoy Cabbage Gratin with Gruyère and Garlic Herb Crust

🌍 Cuisine: French
🏷️ Category: Side Dish
⏱️ Prep: 25 minutes
🍳 Cook: 45 minutes
👥 Serves: 6 servings

📝 About This Recipe

This comforting French-inspired classic transforms the humble cabbage into a luxurious masterpiece, bathed in a silky nutmeg-scented béchamel and topped with a golden, bubbling crust. By par-blanching the cabbage, we unlock its natural sweetness while ensuring a melt-in-your-mouth texture that contrasts beautifully with the crunch of sourdough breadcrumbs. It is the ultimate cold-weather side dish, offering a sophisticated earthy depth that will convert even the most skeptical of vegetable eaters.

🥗 Ingredients

The Cabbage Base

  • 1 large head Savoy Cabbage (roughly 2 lbs, cored and cut into 1-inch ribbons)
  • 2 tablespoons Kosher Salt (for the blanching water)
  • 1 tablespoon Unsalted Butter (for greasing the baking dish)

The Mornay Sauce

  • 4 tablespoons Unsalted Butter (high quality)
  • 1/4 cup All-Purpose Flour
  • 2 1/2 cups Whole Milk (warmed slightly)
  • 2 cloves Garlic (grated or finely minced)
  • 1 1/2 cups Gruyère Cheese (freshly grated)
  • 1 teaspoon Dijon Mustard (for a subtle tang)
  • 1/4 teaspoon Fresh Nutmeg (freshly grated is essential)
  • 1/2 teaspoon Black Pepper (freshly cracked)

The Topping

  • 3/4 cup Sourdough Breadcrumbs (coarse, homemade preferred)
  • 1/4 cup Parmesan Cheese (finely grated)
  • 1 teaspoon Fresh Thyme (leaves only)
  • 1 tablespoon Extra Virgin Olive Oil (to help browning)

👨‍🍳 Instructions

  1. 1

    Preheat your oven to 400°F (200°C) and generously grease a 9x13 inch ceramic baking dish with one tablespoon of butter.

  2. 2

    Bring a large pot of salted water to a rolling boil. Add the cabbage ribbons and blanch for 3-4 minutes until they are bright green and slightly softened but still retain some bite.

  3. 3

    Drain the cabbage into a colander and immediately plunge it into an ice bath or run under very cold water to stop the cooking process.

  4. 4

    Once cooled, squeeze the cabbage firmly with your hands or a clean kitchen towel to remove as much excess moisture as possible; this prevents a watery gratin.

  5. 5

    In a medium saucepan over medium heat, melt the 4 tablespoons of butter. Once foaming, whisk in the flour to create a roux.

  6. 6

    Cook the roux for 2 minutes, whisking constantly, until it smells slightly nutty but has not browned.

  7. 7

    Slowly drizzle in the warm milk, whisking vigorously to ensure no lumps form. Continue to cook for 5-7 minutes until the sauce thickens enough to coat the back of a spoon.

  8. 8

    Remove the sauce from heat. Stir in the grated garlic, Dijon mustard, nutmeg, black pepper, and 1 cup of the Gruyère cheese until smooth.

  9. 9

    In a large mixing bowl, toss the blanched, dried cabbage with the cheese sauce until every ribbon is thoroughly coated.

  10. 10

    Transfer the cabbage mixture into the prepared baking dish, spreading it out into an even layer.

  11. 11

    In a small bowl, combine the sourdough breadcrumbs, Parmesan, remaining 1/2 cup of Gruyère, thyme, and olive oil. Mix until the crumbs are evenly coated.

  12. 12

    Sprinkle the topping evenly over the cabbage. Place the dish in the center of the oven.

  13. 13

    Bake for 20-25 minutes, or until the sauce is bubbling around the edges and the breadcrumb topping is a deep golden brown.

  14. 14

    Remove from the oven and let it rest for 5-10 minutes before serving. This allows the sauce to set slightly for the perfect texture.

💡 Chef's Tips

Squeeze the cabbage dry: This is the most important step to avoid a soggy dish; use a kitchen towel for the best results. Choose the right cabbage: Savoy cabbage is preferred for its crinkly texture and mild flavor, but green cabbage works well too. Don't skimp on the nutmeg: It is the secret ingredient that bridges the gap between the earthy cabbage and the rich cheese sauce. Make it ahead: You can assemble the dish (without the topping) up to a day in advance and keep it refrigerated; just add 10 minutes to the bake time. Add a smoky twist: Stir in 1/2 cup of crispy bacon lardons or smoked pancetta for an extra layer of savory flavor.

🍽️ Serving Suggestions

Pair with a crisp, dry white wine like a Chenin Blanc or a Sauvignon Blanc to cut through the richness. Serve as a side to roasted chicken or a thick-cut pork chop. Accompany with a simple green salad dressed in a sharp lemon vinaigrette. For a vegetarian feast, serve alongside roasted root vegetables and a crusty baguette. Excellent as a holiday side dish next to a honey-glazed ham.