|Combine crumbs, 3 tablespoons sugar, cinnamon and margarine; press onto bottom of a 9-inch springform pan. Bake at 350 degrees F for 10 minutes.
Combine cream cheese and 1/2 cup sugar, mixing at medium speed of electric mixer until well blended. Add eggs, one at a time, mixing well after each addition. Blend in vanilla extract; pour over crust.
Toss apples with combined 1/3 cup sugar and cinnamon. Spoon apple mixture over cream cheese layer. Sprinkle with pecans. Bake at 350 degrees F for 1 hour and 10 minutes. Loosen cake from rim of pan; cool before removing rim of pan. Chill.
Add 1/2 cup finely chopped pecans with crumbs for crust. Continue as directed.