Oh, fine, I’m an idiot. Just in time for what promises to be gloomy and lonely Thanksgiving, I learn that all these many moons I have thought yams and sweet potatoes are the same vegetable. It turns out that they are not; they aren’t even related. The reason is flat-out multi-continental language malpractice.
No wonder nobody seems to know this: here’s the explanation that Food Channel expert Alton Brown unearthed in a video posted here. Let me try to summarize:
Sweet potatoes are not merely potatoes that happen to be sweet. They are actually the root of a vine in the morning glory family, and morning glories are a kind of lily. Christopher Columbus brought some back to Spain in 1493; they were called “batatas” by the Indians who lived in the Greater Antilles Islands. The Spanish called them “patatas.” Here’s Fred and Ginger performing a Gershwin song about such matters…
Where was I? Oh, right, sweet potatoes…The Spanish king served a sweet potato pie to King Henry VIII at some royal event and he loved it (of course, he loved just about anything he could put in his mouth) , he took some vines back to England. There patatas became “potatoes.” (Cue that song again…). Continue reading




