Preheat your oven to 350°F (175°C).

In one bowl, mix together the brown sugar, heavy cream, egg, vanilla extract, corn syrup, and a pinch of salt until well combined.

In another bowl, cream together the softened butter, granulated sugar, and brown sugar until fluffy.

Add the egg yolk, additional vanilla extract, and milk to the butter mixture, blending until smooth.

In a separate bowl, combine the flour, baking soda, baking powder, and salt. Gradually mix into the butter mixture until just combined.

Fold in the pecans and syrup mixture until evenly distributed.

Drop tablespoons of dough onto a baking sheet lined with parchment paper, spacing them apart.

Bake for 10-12 minutes or until lightly golden around the edges.

For an indulgent twist, drizzle melted dark chocolate over the cookies and top with extra pecans while still warm.

Let cool before serving to ensure they hold their shape.