"This sour cream coffee cake is easy to make with a cake mix, and a cinnamon and walnut filling makes it extra special...."
INGREDIENTS
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1/3 cup chopped walnuts
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1/3 cup packed brown sugar
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2 tablespoons cinnamon
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2 teaspoons unsweetened cocoa
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1 package (18 1/4 ounces) butter or vanilla cake mix
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1 package (3 ounces) vanilla instant pudding mix
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8 ounces sour cream
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1/2 cup canola oil
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4 large eggs