Supor ad

When I saw this ad, I said to myself I must be getting old and dumb. I didn't understand this clever ad. It's selling non-stick pan alright but there is a creative idea which I found it hard to understand. I tried look at it closely, turn it upside down and even flipped a few pages of the magazine to look for follow-up explanation, presumably it's a teaser. None... I managed to figure it out after spending some more time on it... know what it's about ?