Butternut Squash Gratin With Onion and Sage

"From Fine Cooking Magazine - Issue No. 17. To make butternut squash easier to handle, cut off the neck, peel it, and cut it into pieces to use in this gratin. Reserve the bottom of the squash, which contains the seed cavity, for roasting."
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Ready In:
1hr 30mins


  • 1 tablespoon butter
  • 1 tablespoon olive oil
  • 2 large onions, chopped into 1-inch squares (about 4 cups)
  • 3 tablespoons fresh sage, chopped or 1 tablespoon dried sage
  • 3 lbs butternut squash, peeled and cut into 1/2-inch cubes (about 8 cups)
  • 2 garlic cloves, minced
  • salt & freshly ground black pepper
  • 12 cup heavy cream, plus
  • 2 tablespoons heavy cream, heated until warm
  • 1 cup fresh breadcrumb
  • 1 12 tablespoons butter, melted


  • Heat the oven to 350 degrees F. Lightly coat a gratin dish with butter. In a large skillet over low heat, melt the butter with the oil. Add the onions and the sage. Cover and cook over low heat while you prepare the squash.
  • Put the squash in a steaming basket and set over simmering water. Cover and let steam until the squash is tender, about 10 minutes. Put the squash in the prepared dish with the garlic and 3/4 teaspoon salt. Toss gently to combine.
  • Continue to cook the onions, stirring frequently, until they caramelize, about 25 minutes total. Season with salt and pepper and add them to the gratin dish, mixing them with the squash. Pour the warm cream over the vegetables. Toss the breadcrumbs with the melted butter and sprinkle the crumbs evenly over the gratin. Bake until the top is browned and bubbling, about 40 minutes.

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  1. This was a very interesting recipe. The sage had a really strong flavor. I think my dish was not quite "thin" enough to get the cream flavor throughout and the crumbs on top even. I did it for Thanksgiving - it received mixed reviews. Cook in the thinnest dish you have. And don't be heavy handed with the sage. I would also put a bit more butter with the crumbs on top.


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