I think this must come from the Union Pacific Railroad. My cousin Maxine gave me the recipe millions of years ago, Well. she's a million years old, I am just a thousand years old. LOL We both are from when traveling by train was the way most families traveled across the USA. I wish everyone could see how beautiful this country is. There are things one gets to see that can only be seen by train, hiking, or by pack animals. The old wood trellises the trains crossed were not only amazing, but gorgeous. Although I will admit the desert is a tad boring at times unless you know what to look for.