This recipe makes classic style cookies - they're flat, chewy in the middle and crispy at the edges. Try to eat at least one while the PB chips are still a bit melty.
There's no need to chill this dough, but you can prepare it a couple of days ahead and keep it in the fridge until you're ready to bake. It freezes well too, so you can form it into flattened balls and bake straight from the freezer.