Preheat your oven to 375°F and line your baking sheets with parchment paper.
In a large bowl or stand mixer with the paddle attachment, combine peanut butter, butter, both sugars, and salt. Beat on medium speed until smooth and creamy. Add the egg and vanilla extract, mixing until fully incorporated. Scrape the sides of the bowl as needed.
¾ cup creamy peanut butter, ½ cup unsalted butter, ½ cup granulated sugar plus ⅓ cup more for rolling, ½ cup packed light brown sugar, ¼ teaspoon salt, 1 large egg, 1 teaspoon vanilla extract
Add the flour and baking soda, then beat on low speed until the dough comes together. Scoop the dough into 1-inch portions (about 1 tablespoon each) and roll them in extra sugar if desired. Place the dough balls on the prepared sheets, spacing them about 2 inches apart.
1½ cups all-purpose flour, ½ teaspoon baking soda
Bake for 8 to 10 minutes, or until the cookies are puffed, cracked, and lightly browned on the bottom. Press a chocolate kiss into the center of each cookie immediately after baking (the cracks are perfectly normal!).
36 Hershey’s dark chocolate kisses
Let the cookies cool on the baking sheet until the chocolate hardens. Enjoy or store in an airtight container for up to a week.