INGREDIENTS
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preheat oven to 450 degrees F.
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2 Tablespoons flour
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3/4 cup sugar
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pinch of salt
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1 egg, beaten
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1 teaspoon vanilla
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1 cup sour cream
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3 medium apples, peeled, cored, sliced
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9 inch unbaked pie shell
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for the topping:
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1/3 cup sugar
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1/3 cup flour
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3/4 teaspoon cinnamon
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1/4 cup cold butter