Retro Party Mix Recipe printed on the box the year I was born
“It’s likely that versions of party mix were enjoyed throughout the late 1930s and 1940s, but Ralston Purina didn’t begin publishing their official party mix recipe (printed on the box, of course) until 1952. It included both kinds of Chex and nuts, tossed in a combination of Worcestershire sauce, butter, garlic salt, and salt. Everything was mixed together and baked in the oven at a low temperature, then cooled and stored until ready for munching. When Corn Chex arrived on the scene in 1958, it quickly joined the party (mix).”
