INGREDIENTS
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2 tablespoons unsalted butter, softened
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3 cups plus 2 tablespoons all-purpose flour
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2 cups granulated sugar
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1 1/2 cups vegetable oil
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3 large eggs
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1/2 cup orange juice
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1 teaspoon vanilla extract
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1 teaspoon baking soda
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1/2 teaspoon ground cinnamon
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1/2 teaspoon kosher salt
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2 to 2 1/2 cups peeled, cored and finely diced sweet apples
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1 cup walnuts, finely chopped
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3/4 cup granulated sugar
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6 tablespoons (3/4 stick) unsalted butter
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1/3 cup buttermilk