It's a fact: stuff is better when it's stuffed with stuff.
Instead of trying to say that five times fast, go ahead and preheat your ovens, because you'll want to make time move faster in an effort to get these cookies in your mouth sooner. Because if there's anything better than a deliciously crumbly shortbread cookie, it's one that is stuffed with rich, creamy, chocolate-and-hazelnut-laden Nutella.
I'm tempted to deem these the perfect lunchbox treat for back-to-schoolers, but really they're the ideal mid-day pick me up for anyone.