Preheat oven to 350° F. Line a baking sheet with parchment paper and spray with nonstick cooking spray. Set aside.
In a large bowl, using an electric hand mixer, whip butter, peanut butter, sugar, and brown sugar together until light and fluffy.
Add vanilla extract and eggs and mix. Scrape sides and mix again.
Add salt, baking soda, and flour and mix until combined.
Stir in chopped Hershey’s caramel kisses*.
Scoop by the teaspoon full onto the prepared baking sheet.
Bake 8-9 minutes or until the edges are barely golden and the middle looks like it’s not quite done.**
Cool on baking sheet 5 minutes before transferring to cooling rack. Store in airtight containers.
Notes
*Try to have most of your Hershey kisses closer to the top than the bottom because they will ooze on your baking sheet and become crunchy. **You may have the urge to keep them in longer–don’t! Unless you want crunchier cookies in which case you should then leave them in a minute or two longer… but I like mine chewy so I pull them out sooner.