Slutty brownies were first made by Kevin and Amanda back in 2011, when they weren’t even called slutty brownies (they were called Cookie Dough Oreo Brownies). The Londoner later described why they called them slutty brownies: “they’re oh so easy, and more than a little bit filthy.” Just as simple as I would’ve imagined. They are as easy to make as they are messy to eat.” And thus, the internet ended up changing the name to Slutty Brownies.