"Bright, lemony cookies for a bright, summery day...."
INGREDIENTS
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1 1/2 cups King Arthur Unbleached All-Purpose Flour
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1 teaspoon cornstarch
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1 teaspoon baking powder
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1/2 teaspoon salt
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2 tablespoons lemon juice powder*
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1/2 cup (8 tablespoons) unsalted butter, at room termperature
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1/2 cup granulated sugar
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1/4 cup light brown sugar
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1 tablespoon grated lemon rind (lemon zest)
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1/2 teaspoon vanilla extract
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1/2 teaspoon lemon extract, optional, for enhanced lemon flavor
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1 large egg
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*See "tips," below.