From the Graphics Fairy:
“You will need white vinegar, baking soda, and some type of scrub sponge. I used a sponge with a scrubber, and because mine had quite a bit of burnt on food, I also used a copper pot scrubber.
“Then I spritzed the baking soda with vinegar. It started to bubble up a little and get to work, so I left it there for about 30 minutes.
"I then came back and scrubbed the burnt on food away. The baking soda and vinegar mix just does something to loosen those bits, and once it did its magic, it took me 15 minutes to scrub the entire inside. I then rinsed it with water using a dish rag."
“I used the copper scrubber to scrub my oven rack as well. I just took it into my bathtub and scrubbed it with warm water…all clean now! I have to be honest, at this point, I’d almost rather not cook in there. I mean it’s so clean now!!! “