Preheat the oven to 375°F. Line a baking sheet with parchment paper.

In a large bowl, cream together the butter, peanut butter, granulated sugar, and brown sugar until light and fluffy.

Add the egg and vanilla extract, mixing until combined.

In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

Roll the dough into 1-inch balls, then roll each ball in granulated sugar to coat. Place them on the prepared baking sheet.

Bake for 8-10 minutes, or until the edges are lightly golden.

Immediately press a Hershey’s Kiss into the center of each cookie.

Let cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely. Enjoy!