They serve this shit where I work. What we do is take a huge-ass sheet pan, fill it with fresh garlic, cover it in oil, throw in rosemary/bay leaves, then cover it with aluminum foil and leave it in the oven. Honestly, I can't tell you how long it stays in there because we don't use timers. It takes a while though, especially since we're doing large batches, and it starts to bubble and shit when it's done. We also don't have a thermometer on the oven so I'm guessing it's around 300 degrees. I work in a fucking stone-age kitchen

Not a damn thing is pre-made or pre-cut. Everything from scratch.
Oh yeah, I work in an Italian restaurant but I think the idea is the same.