In a large bowl, beat the cream cheese until smooth and creamy. I like to use my stand mixer for this or hand mixer.
Add powdered sugar, vanilla, and lemon juice. Continue to beat until well combined.
In a separate bowl, beat the heavy cream until soft peaks form. Gently fold the whipped cream into the cream cheese mixture.
Fold in the the crushed cookies, mixing it gently without deflating the whipped cream.
If you want a firmer texture, you can dissolve 1/2 tablespoon of unflavored gelatin in 2 tablespoons of warm water and fold it into the batter before spreading it on the crust.
Spread the cheesecake mixture evenly over the chilled crust, smoothing the top with a spatula. Cover with plastic wrap and refrigerate for at least 4 hours, or until firm (overnight is ideal for best results)
Once the bars have fully set, drizzle with white chocolate, if using and sprinkle with more crushed cookies. Slice into bars and enjoy!