"This recipe is a classic. It comes right off the package of King Arthur Flour...."
INGREDIENTS
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2 teaspoons ground cinnamon
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2 teaspoons pure vanilla extract
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1/2 cup coarsely chopped walnuts
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8 tablespoons (1 stick) unsalted butter, room temperature, plus more for pans
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2 cups all-purpose flour, plus more for pans
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1 teaspoon baking powder
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1 teaspoon baking soda
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1/2 teaspoon salt
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1 cup sugar, plus 1/2 cup for topping
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2 large eggs
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1 cup sour cream