Monday, October 1, 2007

Butternut Sqaush and Creamed-Spinach Gratin


This weekend, I hosted a small dinner party with some close friends. I made a lot of recipes from the blog, including the popovers and the cauliflower soup with scallops. For the main course, I made a roast leg of lamb. I searched on Epicurious for a good seasonal side and found this gratin. It ended up being a perfect compliment to the lamb and not too heavy like a potato would have been. I used a can to cut out individual and better-looking servings. My only warning is to be very careful when handling butternut squash. Make sure your knife and mandolin slicer are very sharp. The squash is tough to cut thru just like cantaloupe and watermelon.

Butternut squash and creamed-spinach gratin
Gourmet November 2006 Parmigiano-Reggiano and a generous dose of heavy cream transform butternut squash and spinach into a rich, bubbling gratin.

Makes 8 to 10 servings.

3 lb fresh spinach, stems discarded, or 3 (10-oz) packages frozen leaf spinach, thawed
5 tablespoons unsalted butter plus additional for greasing pan
3/4 cup finely chopped onion (1 small)
3 garlic cloves, minced
1 1/2 teaspoons salt
3/4 teaspoon black pepper
Rounded 1/4 teaspoon freshly grated nutmeg
1 cup heavy cream
4 lb butternut squash (2 large), peeled, quartered, and seeded
1/2 oz finely grated Parmigiano-Reggiano (1/4 cup)

Special equipment: an adjustable-blade slicer
If using fresh spinach, bring 1 inch water to a boil in a 6- to 8-quart pot over high heat. Add spinach, a few handfuls at a time, and cook, turning with tongs, until wilted, 3 to 5 minutes. Drain in a colander and rinse under cold water.

Thoroughly squeeze cooked fresh or thawed frozen spinach in small handfuls to remove excess moisture, then coarsely chop and transfer to a bowl.

Melt 3 tablespoons butter in an 8-inch heavy skillet over moderately low heat, then cook onion and garlic, stirring, until softened, 3 to 5 minutes. Add onion mixture to spinach along with salt, pepper, nutmeg, and cream and stir to combine.

Put oven rack in upper third of oven and preheat oven to 400°F. Butter a 3-quart shallow baking dish (13 by 9 inches; not glass).

Cut squash to separate bulb section from solid neck section, then cut pieces lengthwise into 1/8-inch-thick slices with slicer.

Layer squash and spinach mixture in baking dish, using about one fifth of squash and one fourth of spinach for each layer, beginning and ending with squash. Sprinkle top layer of squash evenly with cheese and dot with remaining 2 tablespoons butter, then cover directly with a sheet of parchment or wax paper. Bake until squash is tender and filling is bubbling, 25 to 30 minutes. Remove paper and bake gratin until browned in spots, 10 to 15 minutes, or broil 3 inches from heat, 2 to 3 minutes.

Cook's note: Gratin can be assembled, but not baked, 1 day ahead and kept, surface covered with parchment or wax paper and then covered with plastic wrap, chilled. Let stand at room temperature 1 hour before baking.
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