Psst! Here's a secret. You can still make Jell-O 1-2-3 at home even though they don't sell the boxed mix any more. I tried the one from Carolyn Wyman's book, "Jell-O: A Biography," and it was pretty spot-on!
Loved this short-lived product. It was so cool to see the layers separate! One was like Jello, one like pudding, and one kinda like sweetened foam insulation, but we loved it.
Just discovered The Metal Misfit's nostalgia blog, and he's got a fun post about Jell-O 1-2-3.
Were you a fan?