"Pasties are savory turnovers. They originated in Cornwall, England, in the 1700s. During that era, tin miners took the portable pies into the mines for lunch...."
INGREDIENTS
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2 cups unbleached all purpose flour
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1 cup white whole wheat flour or whole wheat flour
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1 1/8 teaspoons salt
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1/2 cup solid vegetable shortening (preferably nonhydrogenated), frozen
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1/2 cup (1 stick) chilled unsalted butter, cut into 1/2-inch cubes
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7 tablespoons (or more) ice water
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4 teaspoons olive oil
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2 large onions, thinly sliced
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1/2 cup dry white wine
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1/2 teaspoon dried thyme
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10 ounces skirt steak, cut crosswise on diagonal into 1/4-inch-wide strips
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1 teaspoon coarse kosher salt, divided
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6 ounces coarsely crumbled Stilton blue cheese (1 1/3 to 1 1/2 cups), divided
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1 large egg white, beaten to blend