INGREDIENTS
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1 cup (4 ounces) whole wheat flour
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1 cup (4 1/4 ounces) all-purpose flour
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1 teaspoon baking powder
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1 teaspoon baking soda
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1/4 teaspoon salt
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1 tablespoon cinnamon
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1/2 cup (1 stick, 4 ounces) unsalted butter, at room temperature
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1/2 cup (3 1/2 ounces) granulated sugar
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1/2 cup dark brown sugar, packed, divided
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1 large egg, lightly beaten
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1 cup (8 ounces) buttermilk or yogurt
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2 large apples, peeled, cored, and coarsely chopped