INGREDIENTS
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2 cups granulated sugar
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⅓ cup unsalted butter, softened
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4 ounces cream cheese, softened
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3 large whole eggs
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1 large egg, white only
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2 teaspoons vanilla
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3 cups flour
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2 cups fresh blueberries
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1 teaspoon baking powder
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½ teaspoon baking soda
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½ teaspoon salt
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8 ounces lemon flavored yogurt
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½ cup sifted powdered sugar
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4 teaspoons lemon juice
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1 teaspoon lemon zest