Preheat the oven to 350 degrees.
Combine peanut butter, butter, granulated sugar, and brown sugar in a large bowl and mix together for a couple minutes until creamy. 3/4 cup creamy peanut butter, 1/2 cup unsalted butter, 1/2 cup granulated sugar, 1/2 cup brown sugar
Stir in the egg and vanilla, and mix till just combined.1 egg, 1 tsp vanilla extract
Add flour, baking soda, and salt and mix. (Start with 1 1/4 cup flour and add more in one tablespoon at a time until the cookie dough is a good texture, not to sticky, and not too dry) 1 1/2 cups flour, 3/4 tsp baking soda, 1/2 tsp salt
Roll cookies into 1 tablespoon sized balls. Place into remaining sugar and roll to coat. 1/4 cup sugar
Place balls on a cookie sheet lined with parchment or silicone, about 2 inches apart from each other.
Bake for 8-9 minutes until the cookies are golden on the sides and just start to crack.
Remove cookies from the oven and carefully push a chocolate kiss into the top of each cookie (they will crack more). Don't push too hard that they break. 30 Hershey kisses
Allow cookies to set on pan for another 3-4 minutes, then carefully move to a cooling rack and allow to cool completely.