Prepare and Chill the Pie Crust: Roll out your homemade pie dough and gently press it into a 9-inch deep dish pie plate. Crimp the edges as desired, then place the crust in the refrigerator while you make the filling. This helps prevent the crust from shrinking during baking.
Mix the Sweet Syrup Base: In a large mixing bowl, combine the granulated sugar, brown sugar, and salt. Add in the corn syrup and butter, then mix until smooth and slightly creamy. This forms the rich, syrupy base of the pie.
Add Eggs and Flavoring: Crack in the eggs and pour in the vanilla extract. Whisk or beat everything together until the mixture is well-blended, smooth, and slightly thickened.
Fold in the Pecans: Reserve a small handful of pecan halves to garnish the top later. Stir the remaining pecans into the filling mixture, making sure they’re evenly coated.
Assemble the Pie: Pour the pecan filling into the chilled, unbaked crust. Arrange the reserved pecan halves decoratively on top, filling in any gaps. Gently press them down so they sit slightly in the batter, then spoon a little batter over them to help them bake into the surface.
Bake to Perfection: Place the pie on the center rack of a preheated 425°F (220°C) oven and bake for 10 minutes. Without opening the door, reduce the heat to 350°F (175°C) and continue baking for 45–50 minutes. About halfway through, loosely tent a piece of greased aluminum foil over the pie to prevent the top and crust from browning too quickly.
Check Doneness and Cool: The pie is ready when the center has a slight jiggle but doesn’t ripple like liquid. If it’s too wobbly, continue baking in 5–10 minute increments until set. Once done, allow the pie to cool completely at room temperature for several hours before slicing. This helps the filling firm up for clean, perfect slices.