The next famous food invented by mistake are the corn flakes.
When: Late 1890s
Who: Will and John Kellogg
How: Experimenting with different foods to find items that would work well, the Kellogg brothers invented one of the most famous breakfasts. Wanting to produce granola for the vegetarians patients as a healthy treat, Will and John Kellogg accidentally produced a batch of flaked wheat.
They let it for stale before they processed it through rollers, and served the hard flaked wheat to the patients. And there you go, corn flakes!
Over-baking proved to be a positive thing ->