Preheat oven to 350 degrees and line a baking sheet with parchment paper. Set aside.
In a medium bowl, whisk together the flour, baking soda, and salt.
In a large bowl, using an electric hand mixer, cream together the butter, brown sugar, granulated sugar, vanilla, and corn syrup.
Add in the eggs, one at a time, being sure to mix well after each addition.
Mix in the dry ingredients with the wet ingredients until completely combined.
Using a spatula, fold in the Reese’s Pieces and chocolate chunks.
Using a 4 tablespoon cookie dough scoop, scoop dough, roll into ball, and place on prepared baking sheet.
Bake for 10-12 minutes or until edges are lightly browned.
Remove from oven and let cookies cool on baking sheet for 5 minutes, then transfer them to a wire cooling rack.