INGREDIENTS
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1 cup chopped walnuts
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1 cup semisweet chocolate chips
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1/2 cup (packed) light brown sugar
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2 teaspoons ground cinnamon
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Pinch of kosher salt
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1 cup (2 sticks) unsalted butter, room temperature, plus more for pan
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4 cups all-purpose flour, plus more for pan
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2 teaspoons baking powder
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2 teaspoons baking soda
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1/2 teaspoon kosher salt
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2 cups granulated sugar
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4 large eggs
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2 cups sour cream
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2 teaspoons vanilla extract
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A 12-cup Bundt pan