A Red Hot Knife That Toasts Bread As It Cuts Is Real and It Works

There's a scene in the 2005 The Hitchhiker's Guide to the Galaxy movie where a lightsaber-like bread knife is not only able to slice a loaf, it toasts it at the same time. That was done with special effects, but mad Brit inventor Colin Furze has gone and built a similar contraption in real-life, and his creation works.