A lot has changed over the past century. From bob cuts to bell bottoms, pet rocks to pop music, we’ve seen a lot of strange things come and go—all of which seemed like great ideas at the time.

But when it comes to weird trends of the last 100 years, food takes the pineapple upside down cake. Sticking hard-boiled eggs in Jell-O and calling it a “salad”? Totally normal in the ’30s. Instant “just-add-water” mashed potatoes? Not only for NASA, these classics were beloved in the ’60s.

Bon Appetit combed through the decades to select the top 10 winners of the wackiest food trends over the last century. From SPAM to foam, the list highlights the strange high points (and sometimes low) in American food history.

As for me, I’m just glad that the Jell-O salad trend has been kicked to the curb.