Here's a recipe for Café de Olla from Pati's Mexican Table on PBS...me gusta mucho and yes, a French Press coffeemaker works fine in place of a clay pot, though it's not quite as authentic. A quicker or more portable version is Nescafe's instant Café de Olla sold at MexGrocer.com (or maybe at a store near you, depending on where you live). There's just something about cinnamon -- it's not a rare or unusual spice, but it does always seem to bring a certain warm magic to anything it's added to.
[Pictured: The Open Cupboard -- Maria Izquierdo, 1946]