It's a tumblr dedicated to questionable recipes and food advertisements from the 1970s and earlier. As someone who has a modest cookbook collection that includes some uh very vintage tomes, I can't say I'm surprised by some of the combinations, but seeing these horrible dishes in all their full-color glory is something else. Here's a sampling:

"Salad in Aspic"

"Tuna 'n' Mackerel Picnic Loaf"

Plus, whatever is going on here ...

And here ...