In a mixing bowl, combine the pistachio pudding mix and milk; whisk until thickened.
Fold in the whipped cream gently until well combined.
Add the vanilla extract and mix thoroughly.
Layer the bottom of serving glasses with crushed cookies (optional).
Pour the pistachio mixture over the cookie layer.
Sprinkle crushed pistachios on top for garnish.
Chill in the refrigerator for at least 2 hours to set.
Before serving, add extra whipped cream if desired.
Enjoy your delicious pistachio pudding dessert!