Heat oven to 350°F In large bowl, stir cookie mix, butter, water and egg until soft dough forms. Stir in 1 cup pecans. Press dough in bottom and up side of ungreased 9-inch tart pan with removable bottom.
Bake 19 to 21 minutes or- until light golden brown. Cool 10 minutes.
Meanwhile, in medium microwavable bowl, microwave caramels and 1/3 cup whipping cream on High 2 to 4 minutes, stirring twice;until caramels are melted. Stir in cup pecans. Spread over cooled crust. Refrigerate 15 minutes.
In another medium microwavable bowl, microwave chocolate chips and 1/3 cup whipping cream on High 1 to 2 minutes, stirring every 30 seconds, until chocolate is smooth. Pour over filling. Sprinkle with 1/4 cup pecans. Refrigerate 2 hours or until set. To serve, let stand at room temperature 10 minutes before cutting. Store covered in refrigerator.