I’m being a bit vague not to bias the poll. The question is pretty simple.
If I told you I was eating a food called “rocket,” would you know what I was eating?
My sister found this in an iPhone game where she had to name foods using scrambled letters. There was no other word before the word “rocket,” and the more common U.S. name was not acceptable.
I think a cookbook is exactly where I learned it from. Probably this one:
I have even and heard it used elsewhere. The Silver Palate cookbook was a pretty common one back in the early-mid 1990s, and was my go to cookbook for many years.
I’m not American and had never heard of a food called rocket. Trying to guess I thought maybe a sausage or some type of bread or pastry thing. Would never have guessed it was arugula.
If I only saw the word “rocket” as your sister did, I would not necessarily make a connection. If I heard the term used in the context of dining however, I would assume that I heard “roquette” and would know that it was a salad green.
I’ve never ever heard “rocket” (ETA: “roquette”?) used in this way.
OTOH, I’ve also never heard of “arugula” until it became famous in connection with Obama, and I’ve barely ever heard it since except in that context. (Typically, mentioned by anti-Obama types, apparently to make him sound “elitist” or something. Is there something “elitist” about arugula?)
Why is arugula not acceptable for the OP’s word game? Is it not an English word? Is it Spanish?
More ETA: What is arugula anyway? Is it == cilantro?
Never heard of it before, never used arugula in my cooking either though, and wouldn’t be able to point out arugula in a line-up of various salad greens. US citizen, born and raised in Oregon and moved to Houston for several years now. Never once ever heard it, and cooking is a hobby of mine.