In a large bowl, combine the crackers, sugar, pecans and cinnamon; stir in butter. Press onto the bottom of a lightly greased 10″ springform pan.
Bake at 350℉ for 10 minutes. Place pan on a wire rack.
In a large bowl, beat cream cheese and sugar until smooth. Add eggs; beat on low speed just until combined. Stir in vanilla and sour cream. Pour over crust.
Toss apples with lemon juice, sugar and cinnamon; spoon over filling. Sprinkle pecans over top. Return pan to baking sheet.
Bake at 350℉ for 55– 60 minutes or until center is almost set.
Cool on a wire rack for 10 minutes. Carefully run a knife around edge of pan to loosen.
Drizzle with 4 tablespoons caramel topping.
Cool for 1 hour. Chill overnight. Store in refrigerator.