Sour Cream Coffee Cake
["1/4 lb. butter (1 stick)", "1 c. sugar", "2 c. sifted flour", "1 tsp. baking powder", "1 tsp. baking soda", "1/2 tsp. salt", "2 eggs", "1 c. sour cream", "1 tsp. vanilla", "1/2 c. cut walnuts", "1 tsp. cinnamon", "1/2 c. sugar"]
["Cream butter and sugar; add flour, baking powder, baking soda and salt.", "Add eggs, sour cream and vanilla.", "Mix all together well; set aside.", "Mix walnuts, cinnamon and sugar.", "Put 1/2 of batter in 9-inch tube pan (greased and floured), then 1/2 of topping (walnuts, sugar and cinnamon), then rest of batter and other half of topping.", "Bake at 350\u00b0 for 45 minutes."]
["butter", "sugar", "flour", "baking powder", "baking soda", "salt", "eggs", "sour cream", "vanilla", "walnuts", "cinnamon", "sugar"]