"This Key Lime Shortbread Cookies Recipe makes the best shortbread cookies that are not too sweet and have a hint of key lime flavor in the cookies and frosting...."
INGREDIENTS
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For the Cookies
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¾ cup butter, at room temperature
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½ cup cornstarch
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½ cup confectioners sugar
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1¼ cups all-purpose flour
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1 teaspoon key lime zest
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1½ tablespoons key lime juice
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For the Frosting
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¾ cup confectioners sugar
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¼ cup butter, at room temperature
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1 teaspoon key lime zest
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1 tablespoon key lime juice