INGREDIENTS
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Zest of two lemons
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Juice of one lemon (4 Tablespoons total)
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 1/2 cup (1 stick) unsalted butter, softened
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 3/4 cup granulated sugar
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 3/4 cup all-purpose flour
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 1/4 teaspoon salt
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2 large eggs
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1 cup confectionersâ sugar
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2 Tablespoons lemon juice
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lemon zest