INGREDIENTS
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2 1/2 cups flour
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1/3 cup sugar
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1 tsp baking powder
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1 tsp baking soda
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1/2 tsp salt
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1 egg
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1/2 cup unsalted butter (cold and cubed)
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3/4 cup milk
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1 cup blueberries (frozen or fresh)
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1 cup powdered sugar
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3 tbsp lemon juice