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Close-up of Sage Butternut Squash Gratin in a baking dish, topped with cheese and fresh sage leaves.

Sage Butternut Squash Gratin

A creamy and savory gratin featuring tender butternut squash infused with fresh sage.
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Prep Time 20 minutes
Cook Time 45 minutes
Resting Time 10 minutes
Total Time 1 hour 15 minutes
Servings: 6 servings
Course: Side Dish
Cuisine: American
Calories: 350
Ingredients Equipment Method Notes

Ingredients
  

For the Gratin
  • 1 large butternut squash peeled, seeded, and thinly sliced
  • 2 cups heavy cream
  • 1/2 cup milk
  • 2 cloves garlic minced
  • 1 tablespoon fresh sage chopped
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 cup Gruyère cheese shredded
  • 1/2 cup Parmesan cheese grated

Equipment

  • Baking dish
  • Mandoline
  • Saucepan

Method
 

  1. Preheat your oven to 375°F (190°C). Butter a 9x13 inch baking dish.
  2. In a saucepan, combine the heavy cream, milk, minced garlic, chopped sage, salt, and pepper. Heat over medium heat until warm, but do not boil. Remove from heat.
  3. Arrange the thinly sliced butternut squash in an even layer in the prepared baking dish.
  4. Pour the warm cream mixture evenly over the squash.
  5. Sprinkle the shredded Gruyère and grated Parmesan cheese over the top.
  6. Cover the baking dish with foil and bake for 30 minutes.
  7. Remove the foil and bake for another 15-20 minutes, or until the squash is tender and the top is golden brown and bubbly.
  8. Let the gratin rest for 10 minutes before serving.

Notes

You can add a pinch of nutmeg to the cream mixture for extra flavor. If you don't have a mandoline, you can slice the squash with a sharp knife, aiming for consistent thickness.