Pecan Piecrust (recipe follows)1 cup (336 grams) light corn syrup½ cup (100 grams) granulated sugar½ cup (110 grams) firmly packed dark brown sugar3 large eggs (150 grams), room temperature2 tablespoons (28 grams) unsalted butter, melted and cooled for 5 minutes1 tablespoon (15 grams) bourbon1 teaspoon (4 grams) vanilla extract½ teaspoon (1.5 grams) kosher salt1¾ cups (198 grams) pecan halves*½ cup (80 grams) finely chopped chocolate-covered toffee candy bar
Position oven racks in center and upper third of oven. Preheat oven to 375°F (190°C). Spray a 9-inch pie plate with baking spray with flour.
On a lightly floured surface, roll Pecan Piecrust into a 12- to 12½-inch circle (about ⅛ inch thick). Transfer to prepared plate, pressing into bottom and up sides; trim edges to ½ inch beyond edges of plate, if necessary. Fold edges under, and crimp as desired. Freeze until firm, about 20 minutes.
In a medium bowl, whisk together corn syrup, sugars, eggs, melted butter, bourbon, vanilla, and salt. Reserve ½ cup (57 grams) pecans; very roughly chop remaining 1¼ cups (141 grams) pecans. Fold all pecans and candy bar into corn syrup mixture. Pour into prepared crust.
Bake on center rack for 25 minutes. Place a sheet of foil on upper rack, and bake until center of pie is set and an instant-read thermometer inserted in center registers 200°F (93°C), 40 to 45 minutes more, loosely covering with foil after 25 to 30 minutes of baking to prevent excess browning. Let cool completely on a wire rack before slicing.