Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a mixing bowl, cream together the softened butter, granulated sugar, and brown sugar using an electric mixer or whisk until light and fluffy, about 3-5 minutes.
Add in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Fold in the chopped pecans until evenly distributed throughout the dough.
Scoop tablespoon-sized portions of dough and place them onto the prepared baking sheet about 2 inches apart.
In another bowl, whisk together the corn syrup, brown sugar, eggs, and vanilla extract until smooth to create the pecan filling.
Pour a small amount of the pecan filling over each cookie, then press a whole pecan into the center of the filling.
Bake in the preheated oven for 12-15 minutes, or until the edges are lightly golden.
Remove from the oven and allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.