CHICKEN AND LEEK CORNISH TURNOVER

Chicken and Leek Cornish Turnover image

Provided by Giada De Laurentiis

Time 2h

Yield 4 servings

Number Of Ingredients 21

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1/4 cup extra-virgin olive oil
1 large leek, white and light green part only, thinly sliced
1 medium carrot, peeled and chopped into 1/4-inch rounds
4 ounces button or cremini mushrooms, sliced
One 6-ounce Yukon gold potato, peeled and diced into 1/2-inch pieces
2 cloves garlic, minced
3 tablespoons chopped fresh thyme leaves
1/2 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
2 tablespoons unsalted butter, at room temperature
2 tablespoons all-purpose flour
1 cup milk, at room temperature
1/3 cup grated Parmesan
1/2 teaspoon kosher salt
1/8 teaspoon freshly ground black pepper
Pinch ground nutmeg
1 large store-bought rotisserie chicken breast, shredded to yield 1 1/2 cups of meat
Kosher salt and freshly ground black pepper
All-purpose flour, for dusting
One 9-inch square sheet frozen puff pastry, thawed
1 large egg, beaten

Steps:

Place an oven rack in the center of the oven and preheat to 400 degrees F. Line a baking sheet with parchment paper.
For the filling: Heat the oil over medium-high heat in a large skillet. Cook the leeks until slightly softened, about 3 minutes. Add the carrots, mushrooms, potato, garlic, thyme, salt and pepper. Stir frequently until the vegetables are tender, about 12 minutes.
For the sauce: Melt the butter over medium heat in a 1-quart saucepan. Add the flour and whisk until smooth, about 2 minutes. Add the milk, whisking constantly to prevent lumps. Simmer over medium heat, whisking constantly, until the sauce is thick and smooth, about 10 minutes. Remove the pan from the heat and stir in the cheese, salt, pepper and nutmeg.
Combine the vegetable mixture, sauce and chicken in a medium bowl. Season with salt and pepper. Cool the filling completely, about 20 minutes.
Roll out the pastry into a 10-by-10-inch square on a lightly floured surface. Transfer the pastry to the prepared baking sheet. Lightly brush the edges of the pastry with beaten egg using a pastry brush. Spoon the filling onto one side of the pastry. Fold the pastry over to encase the filling. Fold and crimp the edges of the pastry together to seal the filling. Brush the top of the pastry with beaten egg. Cut a 1/2-inch-long slit in the top of the pie using a paring knife.
Bake until puffed and golden, 30 to 35 minutes. Cool for 15 minutes and slice into 4 pieces.