Apple Cream Coffee Cake
["1/2 c. chopped walnuts", "2 tsp. cinnamon", "1 1/2 c. sugar", "1/2 c. softened butter or margarine", "2 eggs", "1 tsp. vanilla", "2 c. flour", "1 tsp. baking powder", "1 tsp. baking soda", "1/2 tsp. salt", "1 c. sour cream", "1 large apple, sliced thinly"]
["Heat oven to 375\u00b0.", "Mix in separate bowl 1/2 sugar, cinnamon and walnuts.", "In large bowl, mix soft butter or margarine and sugar.", "Beat until light and fluffy.", "Add eggs and blend well; add vanilla.", "Sift together flour, baking powder, soda and salt.", "Mix into creamed mixture alternately with sour cream.", "Spread half mixture into greased 10-inch tube pan.", "Add sliced apples all around.", "Sprinkle with half cinnamon mixture.", "Add rest of batter, then top with remaining cinnamon mixture.", "Bake 45 minutes."]
["walnuts", "cinnamon", "sugar", "butter", "eggs", "vanilla", "flour", "baking powder", "baking soda", "salt", "sour cream", "apple"]