1 (14 oz.) pkg. caramels
1 (5 oz.) can evaporated milk
1-1/4 cups chopped pecans, divided
1 (9 inch) chocolate crumb piecrust
1 (3 oz.) pkg. cream cheese, softened
1/2 cup sour cream
1/4 cup milk
1 small pkg. chocolate instant pudding mix
Fudge topping
Place caramels and evaporated milk in a heavy saucepan. Heat over medium-low heat, stirring constantly, until smooth, about 5 minutes. Stir in 1 cup chopped pecans. Pour into piecrust.
Combine cream cheese, sour cream, and milk in a blender. Process until smooth. Add pudding mix; process for 30 seconds longer. Pour pudding mixture over caramel layer, covering evenly. Chill, loosely covered, until set.
Drizzle fudge topping over pudding layer. Sprinkle top with remaining pecans. Chill.