INGREDIENTS
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Pie crust
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1 teaspoon sea salt
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2/3 cup ice cold water
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375 g (2 1/2 cup) unbleached all purpose flour
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80 g (1/2 cup + 1 tablespoon) corn flour (not corn starch, corn meal, or masa)
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300 g (1 cup + 5 tablespoons) refrigerator cold unsalted butter
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1 large egg plus 1 tablespoon water for egg wash
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Lemon filling
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1 large blood orange
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1 large lemon
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2 cups sugar
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1 vanilla bean
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4 large eggs
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1/8 teaspoon (generous pinch) of salt
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2 tablespoons of sparkling white sugar or granulated white sugar for sprinkling on top