INGREDIENTS
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Ingredients:
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For the Crust
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1 stick unsalted butter, at room temperature
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1/2 cup confectioners’ sugar
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zest of one orange
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1/4 teaspoon kosher salt
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1 cup all purpose flour
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For the Filling
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1/2 pint kumquats
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4 large egg yolks
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1 can (14 oz.) sweetened condensed milk
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juice of one orange
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1 teaspoon orange liqueur