About Jell-O 1-2-3
Jell-O 1-2-3 was a Jell-O gelatin product introduced in 1969 and discontinued in 1996. The product was one 4. 3 ounce powdered mix that, when properly prepared, separated and solidified into three distinct layers: a creamy top, a mousse-like middle, and regular Jell-O bottom.