Preheat oven to 350°. Line 3 baking sheets with parchment paper.
In a large bowl, mix the flour, ground oats, baking soda, and salt. Set aside.
In your stand mixer, cream the butter, peanut butter and sugars on medium speed. Let it go for 3-4 minutes or until it’s light and fluffy.
Add vanilla and mix in. Add the eggs, one at a time, beating well and scraping the sides of the bowl after each addition.
Add dry ingredients to your stand mixer one spoonful at a time and mix until everything just comes together. Don’t over mix.
Add in your chips and peanuts and mix until just combined. You can easily sub out any of the add-ins with whatever you’d like; chocolate chips, toffee bits, macadamia nuts.
Use a medium cookie scoop to scoop the dough onto your baking sheet. I fit 12 per pan. If you'd like an extra bump of salt (I love salty and sweet), sprinkle on a few grains flaky sea salt before baking.
Bake in 350° oven for 9 minutes. Remove the pan from the oven and give it 3 sharps raps on the stovetop or counter. Return to the oven for 2-3 more minutes.
Cool on the pan for 5 minutes, then transfer to a wire cooling rack.