Preheat oven to 350º.
In a large bowl cream together butter, 1 cup granulated sugar, brown sugar and peanut butter.
Add in eggs and vanilla and beat well.
Stir in baking soda, salt and flour and combine until just incorporated.
Roll dough into 1 1/2 inch balls. *I use a 1 1/2 inch cookie scoop to make sure all cookies are the same size.
Roll each dough ball in remaining 1/3 cup sugar and place onto a cookie sheet. 12 per cookie sheet evenly spaced out.
Use the side of a fork to make indented lines on top of the cookie creating a criss cross pattern.
Bake for 7-9 minutes. You only want a hint of golden brown on top.
Repeat with remaining cookies.
Once cooled store in an airtight container.