Preheat the oven to 350 degrees.
Line 3 baking sheets with parchment paper or a silicone mat - set aside.
In the mixer bowl, beat together the butter & sugars until light & fluffy.
Mix in the eggs one at a time just until combined.
Beat in the vanilla.
Slowly beat in the dry ingredients (flour, cocoa, baking soda & salt).
Fold in 1 cup of the peanut butter chips & 1 cup of the milk chocolate chips.
Use a medium cookie scoop & drop the dough onto the prepared baking trays.
Place several more peanut butter chips & some dark chocolate chips around the tops of the dough.
Bake for 8-10 minutes - immediately add more peanut butter & dark chocolate chips to the cookies after baking while they are still hot.
Allow the cookies to cool for 5 minutes on the baking sheet before transferring to a cooling rack.