Make the crust:
Combine graham cracker crumbs, melted butter, and sugar in a bowl. Press the mixture into the bottom of a pie dish or springform pan. Refrigerate while you prepare the filling.
Make the filling:
Beat the softened cream cheese, powdered sugar, and vanilla extract until smooth. In a separate bowl, whip the chilled heavy cream until stiff peaks form. Gently fold the whipped cream into the cream cheese mixture. Add lemon juice for tang if desired.
Assemble:
Pour the cheesecake filling into the chilled crust and spread it evenly. Cover and refrigerate for at least 4 hours or overnight for best results.
Serve:
Before serving, top with fresh fruit, whipped cream, or a drizzle of chocolate sauce.