Brown Butter Nutella Chocolate Chunk Cookie Bars

When you look up “sweet treat” in the dictionary, you should see a picture of these brown butter Nutella cookie bars. Picture this, if you will: a brown butter chocolate chip cookie adorned with thick swirls of Nutella, chunks of chocolate, and lightly toasted hazelnuts. It’s a show-stopping cookie bar, and I’m drooling just thinking about it.