Prepare the Crust: In a medium bowl, combine graham cracker crumbs, melted butter, and ¼ cup of powdered sugar. Mix until the crumbs are evenly coated.
Form the Crust: Press the crumb mixture into the bottom and up the sides of a 9-inch pie dish. Use the back of a measuring cup or your fingers to form an even layer. Chill the crust in the refrigerator for 15 minutes to set.
Make the Filling: In a large bowl, blend the softened cream cheese with the remaining powdered sugar (¾ cup) until smooth and creamy.
Whip Cream: In another mixing bowl, whip the heavy cream until stiff peaks form, then gently fold it into the cream cheese mixture.
Add Orange Flavor: Stir in the orange juice, orange zest, vanilla extract, and a pinch of salt until everything is well combined.
Combine and Fill: Carefully fold the whipped cream mixture into the orange cream mixture until just combined, being careful not to deflate the whipped cream.
Assemble the Pie: Pour the filling into the prepared graham cracker crust and smooth the top with a spatula.
Chill the Pie: Cover the pie with plastic wrap and refrigerate for at least 4 hours or until set (preferably overnight for the best texture).
Serve: Once set, slice the pie and serve chilled. You can garnish with additional whipped cream and a sprinkle of orange zest if desired.
Notes
Serve slices on dessert plates and garnish with a small sprig of mint or a slice of orange for a pop of color.