Preheat the oven to 350 degrees. Line a baking sheet with parchment paper.
Mix peanut butter, sugar and egg in a bowl.
Roll dough into 1 tablespoon sized balls and place them on the cookies on the baking sheet.
Bake the cookies for 6-8 minutes until the color begins to turn slightly tan.
Press a chocolate kiss on top of the cookies as soon as they are removed from the oven.
Let the cookies cool for 5 minutes before moving them to a cooling rack.