1/4 c. chopped walnuts
2 tsp. ground cinnamon
1 1/2 c. granulated sugar
1/2 c. butter
2 eggs
1 tsp. vanilla extract
2 c. sifted all-purpose flour
1 tsp. double active baking powder
1/2 tsp. baking soda
1 c. sour cream
1 med. apple, peeled and sliced

Mix walnuts, cinnamon and 1/2 cup sugar; put aside. Grease 9-inch angel food tube pan. Preheat oven to 375 degrees. On high speed beat butter creamy, then gradually add 1 cup of sugar while beating until light and fluffy. Add eggs one at a time, then vanilla, beating until fluffy.

Sift flour with baking powder, salt and baking soda. Then lower speed. Beat into batter alternately with sour cream. Spread 1/2 batter in pan. Top with apple slices. Add the rest of batter, then rest of walnut mix. Bake at 375 degrees for 1 hour 15 minutes. Let stand 30 minutes on wire rack to cool. Take out of pan by the tube; let cool on rack.