Coffee Cake
["1/2 c. chopped walnuts", "2 tsp. cinnamon", "1 1/2 c. sugar", "1/2 c. butter or margarine", "2 eggs", "1 tsp. vanilla", "2 c. sifted flour", "1 tsp. baking powder", "1/2 tsp. salt", "1 tsp. baking soda", "1 c. sour cream"]
["Preheat oven to 375\u00b0.", "Grease 9-inch tube pan.", "In small bowl, mix walnuts, cinnamon and 1/2 cup sugar.", "Set aside."]
["walnuts", "cinnamon", "sugar", "butter", "eggs", "vanilla", "flour", "baking powder", "salt", "baking soda", "sour cream"]