Instructions:

1. Combine Pudding and Pineapple: In a large mixing bowl, stir together the instant pistachio pudding mix and the undrained crushed pineapple until the mixture is well combined and the pudding mix has dissolved.
2. Add Marshmallows and Nuts: Fold in the miniature marshmallows and chopped nuts (if using) until evenly distributed throughout the mixture.
3. Incorporate Whipped Topping: Gently fold in the thawed whipped topping until the mixture is light and fluffy, ensuring all ingredients are well combined.
4. Chill: Cover the bowl and refrigerate the mixture for at least 1 hour to allow the flavors to meld and the dessert to set.
5. Serve: Before serving, give the mixture a gentle stir. Spoon into individual serving dishes and, if desired, top each with a maraschino cherry for a classic touch.
Servings: 8
Prep Time: 10 minutes
Chill Time: 1 hour