Mix the Pudding and Cool Whip: In a large bowl, add the instant butterscotch pudding mix to the thawed Cool Whip. Use a hand mixer to beat them together until they are well blended, scraping the bottom and sides of the bowl to ensure everything is combined.
Add Fruits and Treats: Once the pudding mixture is smooth, gently fold in the crushed pineapple (with juice), diced apples, dry roasted peanuts, and mini marshmallows. Mix until everything is well combined.
Chill and Serve: Transfer the salad into a serving dish and sprinkle the crushed dry roasted peanuts on top. Cover the dish with plastic wrap and refrigerate overnight to allow the flavors to meld together beautifully.
Enjoy: When ready to serve, stir gently, garnish with additional peanuts if desired, and enjoy the delightful mouthfuls of caramel-apple goodness!