Cookie Base

1
pouch (1 lb 1.5 oz) Betty Crocker™ peanut butter cookie mix
3
tablespoons vegetable oil
1
tablespoon water
1
egg
Filling

1/3
cup light corn syrup
3
tablespoons butter or margarine, softened
3
tablespoons peanut butter
1
tablespoon plus 1 1/2 teaspoons water
1 1/4
teaspoons vanilla
Dash salt
3 1/2
cups powdered sugar
Caramel Layer

1
bag (14 oz) caramels, unwrapped
2
tablespoons water
1 1/2
cups unsalted dry-roasted peanuts
Topping

1
bag (11.5 oz) milk chocolate chips (2 cups)