Potato Butternut Squash And Gruyere Gratin Recipe

Indulge in this creamy, dreamy Potato, Butternut Squash, and Gruyère Gratin! This show-stopping side dish (or vegetarian main course!) is worth the time and effort. Layers of thinly sliced potatoes and butternut squash are baked to perfection with a rich Gruyère cheese sauce. The perfect comforting dish for a special occasion or a cozy weeknight dinner.

Prep Time 30 mins
Cook Time 70 mins
Calories 438.7 kcal
Protein 29g
Rating 1.0 (1 Reviews)
Potato Butternut Squash And Gruyere Gratin 58

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Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Potato Butternut Squash And Gruyere Gratin

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How to Make Potato Butternut Squash And Gruyere Gratin

  1. **Make the Cream Sauce:** Melt 4 tablespoons of butter in a medium saucepan over low heat. Whisk in 4 tablespoons of all-purpose flour until smooth. Cook, whisking constantly, for 1 minute.
  2. Gradually whisk in 2 cups of whole milk and 1/2 cup of dry white wine. Continue whisking until smooth.
  3. Cook over medium heat, whisking constantly, until the sauce thickens and bubbles (about 5-7 minutes). Stir in 1 teaspoon of salt.
  4. **Prepare the Vegetables:** Peel and thinly slice 2 pounds of Yukon Gold potatoes. Peel, seed, and thinly slice 1 medium butternut squash (about 1 1/2 pounds).
  5. Cook the potatoes in a large pot of boiling salted water for 5 minutes. Add the butternut squash, cover, and cook for 3 more minutes. Drain well.
  6. **Sauté the Onions:** Melt 2 tablespoons of butter in a large skillet. Add 1 medium yellow onion, thinly sliced, and cook over medium heat for 10-12 minutes, or until golden brown.
  7. **Assemble the Gratin:** Preheat oven to 350°F (175°C). Grease a 13x9 inch baking dish.
  8. Layer half of the potato and squash mixture in the prepared baking dish. Sprinkle with half of the salt and freshly ground black pepper.
  9. Top with half of the sautéed onions, 1 1/2 cups of grated Gruyère cheese, and half of the cream sauce.
  10. Repeat layers, ending with the remaining cream sauce. Sprinkle with extra Gruyère if desired.
  11. **Bake:** Bake for 50-60 minutes, or until the gratin is golden brown and bubbly. Let stand for 10-15 minutes before serving.

Nutrition Information (Approximate per serving)

Sodium

23 g

Sugar

22g

Fat

61g

Carbs

15g