I had these cookies at my friends house. I don't even like peanut butter, but these cookies changed my mind. They are moist and dense. One of the most amazing cookies I have ever had. She couldn't remember where the recipe came from and was happy to share it with me. —Leslieswanson
In a mixer combine butter, brown sugar, sugar, and peanut butter.
Add the eggs and vanilla to the butter/sugar mixture.
Mix the salt, baking soda, and flour in a separate bowl. Then add it slowly to the butter sugar mixture.
Form into small walnut sized balls and place on an ungreased cookie sheet about 2' apart. Take a fork and make the traditional check pattern in the top, by pushing the fork tines flat into the top of the cookie. Don't push down to far. Leave the cookies about 1/2" thick.
Bake for 10 minutes. They won't look done but take them out anyway. Don't over cook them. Place on a cooling rack. Enjoy. Store in an air tight container.