If you had the pleasure of seeing Mitty over the holidays like I did (two thumbs up!), you know that a certain Clementine Cake features prominently throughout, made by the one and only Shirley MacLaine, no less. I had never heard of it, so of course I had to look it up as soon as I got home and I discovered that it's a real thing - who knew? I found the same basic recipe repeated over and over online, involving ground almonds and boiling and candying the wintry clementines. Here's one from Nigella Lawson:
In the meantime, here are some clementine cupcakes I found online. There's even a cupcakery called The Clementine Cupcake Company - no, they do not appear to carry a clementine flavored cupcake on their menu :(.