In a large bowl, cream together butter, brown sugar, and white sugar. Add peanut butter and beat until smooth. Beat in the eggs one at a time until well blended.
Combine the flour, baking soda, and salt in a separate bowl; stir into the creamed mixture. Mix in the oats until just combined.
Add all of the chocolate chips and stir by hand until incorporated.
Line a baking sheet with parchment paper (this is optional, you can also bake them on an ungreased baking sheet).The dough is a soft blended dough. Not your typical peanut butter cookie dough. You will need to drop them using a tablespoon or a medium cookie scoop instead of rolling them out into balls.The cookies will spread as they bake so I only bake 6-8 cookies on each baking sheet.
Bake for 10 to 12 minutes in the preheated oven, or until just light brown. Don't over-bake.
Let cookies cool completely on the baking sheet. Store in an airtight container.
Video
Notes
If you'd like perfectly round cookies use a glass or round biscuit cutter to shape them. Turn the glass upside down and place it over the cookie, then gently move the cup in a circular motion. This will create round, uniform cookies.