BUTTERNUT SQUASH GRATIN EPICURIOUS RECIPES

Steps:

• Preheat oven to 400°F. Place butternut squash cubes and olive oil in large bowl; sprinkle with coarse kosher salt and ground pepper and toss to coat. Spread out squash cubes on large rimmed baking sheet. Roast until just tender and beginning to brown, stirring occasionally, about 35 minutes.
• Meanwhile, melt 3 tablespoons butter in heavy medium skillet over medium-low heat. Add sliced leeks and chopped sage; sprinkle with salt and pepper. Sauté until tender but not brown, about 15 minutes. Coat 11x7-inch baking dish with remaining 1 tablespoon butter. Spread half of leek mixture over bottom of prepared baking dish. Sprinkle with half of squash and half of cheese. Repeat layering with leeks, squash, and cheese. DO AHEAD: Can be made 1 day ahead. Cover and chill.
• Preheat oven to 375°F. Pour cream evenly over gratin. Sprinkle with toasted chopped hazelnuts. Bake uncovered until gratin is heated through and cream is bubbling, about 30 minutes (40 minutes if previously chilled).

Steps:

• 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.