Line a 9 inch pie pan with the 9 inch pie crust and fork the edge of the crust. Line the crust with a parchment round or a paper coffee filter and add pie weights, dry rice, dried beans to fill the crust about 2/3 full. Bake in a preheated 375°F oven for 20 minutes.
Stir 6 large eggs and 1 1/2 cups granulated sugar together. Add 2 tablespoons lemon zest, 3/4 cup lemon juice, and 3 1/2 teaspoons orange juice. Add 2/3 cup heavy cream and stir to combine.
Pour liquid into parbaked pastry shell and bake at 300°F for about 50 minutes until the center looks set.
Allow to cool to room temperature on cooling rack and store in refrigerator.
Optional: Brûlée the top. Sprinkle an even layer of 1 tablespoon sugar over the chilled pie and use a kitchen torch (or broiler) to melt and caramelize the sugar until golden and crisp
Notes
If pie will be entirely consumed, use a butter pie crust. If you plan on storing it in the refrigerator, you should use an oil based pie crust so that it is easier to slice.