Iron Cheffing and Judging Are Legit (If Imperfect)
Actually, on the Japanese show, they DO NOT know the secret ingredient. This is form the official Iron Chef Japanese giude. Each chef is given a list of 5-6 item of what MAY be the ingredient, and then they cook! What isn't shown is they have about 15-20 minutes to pow-wow with their assistants before racing up to the stage.
Ahhh, the editing in TV

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