1/2 c. finely chopped pecans or walnuts
1 tsp. cinnamon
1/2 c. sugar
1/2 c. butter, softened
1 c. sugar
2 c. flour
2 lg. eggs
8 oz. sour cream
1 tsp. vanilla
1 tsp. baking powder
1 tsp. baking soda

In small bowl, combine first 3 ingredients. Set aside. In large bowl, with mixer on medium, beat butter with 1 cup sugar until light and fluffy. Add remaining ingredients. Beat at low speed until blended, constantly scraping bowl with spatula. At medium speed, beat 3 minutes.

Spread half of batter in 9-inch tube pan. Sprinkle with 1/3 of nut mixture, then arrange 1 medium cooking apple, peeled, cored and thinly sliced with 1/3 nut mixture. Spread with remaining batter and nut mixture. Bake 60-65 minutes at 350 degrees. Cool in pan 10 minutes. Then remove pan sides.