INGREDIENTS
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Non-stick cooking spray
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1½ tablespoons dry breadcrumbs
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¾ cup butter, softened
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1¾ cups sugar
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4 eggs
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3 cups all-purpose flour
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1 tablespoon baking powder
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1 tablespoon poppy seeds
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½ teaspoon baking soda
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½ teaspoon salt
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1½ cup frozen blueberries, divided
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6 ounces plain Greek yogurt
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⅓ cup fresh lemon juice
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1 teaspoon vanilla
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1 cup powdered sugar
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1 tablespoon milk
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1 tablespoon lemon juice
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½ tablespoon lemon zest