Preheat oven to 350F
Grease a 9x13-inch baking pan with non-stick cooking spray; set aside
In a large mixing bowl, Beat together the butter, granulated sugar, and brown sugar with an electric mixer until well combined
Add the peanut butter, egg, and vanilla and mix well
Stir in the flour, baking soda, baking powder, and salt
Fold in the chocolate chips
Scoop the batter into the prepared baking pan and spread out evenly edge to edge
Bake at 350F for 20-25 minutes until golden brown.
Cool in the pan for 10 minutes
Then cut into 24 bars Place a Hershey’s Kiss in the center of each bar