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1
Preheat oven to 450u00b0. On a lightly floured surface, roll dough to a 1/8-in.-thick circle; transfer to a 9-in. pie plate. Trim crust to 1/2 in. beyond rim of plate; flute edge. Line unpricked crust with a double thickness of foil. Fill with pie weights, dried beans or uncooked rice.
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2
Bake 8-10 minutes or until bottom is lightly browned. Remove foil and weights; bake 5-8 minutes longer or until golden brown. Cool on a wire rack. Reduce oven setting to 350u00b0.
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3
Meanwhile, in a large saucepan, mix sugar, cornstarch and salt. Whisk in water and orange juice. Cook and stir over medium-high heat until thickened and bubbly. Reduce heat to low; cook and stir 2 minutes longer (mixture will be thick). Remove from heat.
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4
In a small bowl, whisk a small amount of hot mixture into egg yolks; return all to pan, whisking constantly. Bring to a gentle boil; cook and stir 2 minutes. Remove from heat. Gently stir in lemon juice, butter, and lemon and orange zests.
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5
For meringue, in a large bowl, beat egg whites with vanilla and cream of tartar on medium speed until foamy. Gradually add sugar, 1 tablespoon at a time, beating on high after each addition until sugar is dissolved. Continue beating until soft glossy peaks form.
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6
Transfer hot filling to crust. Spread meringue over filling, sealing to edge of crust; swirl top with the back of a spoon.
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7
Bake 13-16 minutes or until meringue is golden brown. Cool on a wire rack 1 hour. Chill 3 hours before serving. Refrigerate leftovers.
