Beat cream cheese until completely smooth and creamy.
Add powdered sugar and mix until fully combined.
Mix in lemon zest, lemon juice, and vanilla extract until fluffy.
Fold in crushed cookies until the mixture is thick but still creamy.
Cover and refrigerate for 30–45 minutes until firm enough to roll.
Scoop tablespoon-sized portions and roll into smooth balls.
Place truffles on a parchment-lined tray.
Dip chilled truffles in melted white chocolate or roll in powdered sugar.
Return to the refrigerator until coating is fully set.