INGREDIENTS
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1 1/2 cups all-purpose flour
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1/4 teaspoon salt
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1 tablespoon baking powder
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1 stick butter or 8 tablespoons or 1/2 cup, softened
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1 1/4 cups sugar
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2 eggs
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1/2 cup milk
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1/4 cup sour cream
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1 teaspoon vanilla extract
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2 cups blackberries