Make the Filling: Meanwhile, lightly beat the eggs, then vigorously stir in the corn syrup, sugars, butter, vanilla, and bourbon until smooth and uniform. Stir in the pecans.
3 eggs, 1 cup light corn syrup, ½ cup brown sugar, ½ cup granulated sugar, 2 tablespoons unsalted butter, 2 teaspoons vanilla extract, 1 teaspoon bourbon whiskey, 1 ½ cup pecans