They are incredibly simple but require a lot of time to make the fillings, prepare the masa, and assemble. But with a crew of friends, some good jokes, and maybe a few beers, the process is much more enjoyable than one person in her kitchen filling and folding dozens of corn husks!
A few notes on the differences between tamales: tamales oaxaqueños use banana leaves, which we cooked before using, and the masa has a lot more lard added to it than regular tamales.
Tamales de masa cocida are made of a coarsely ground corn mixture that is precooked, unlike the masa harina mixture that you can buy and just add water to.
Tamales de frijol are made like a jelly roll - the masa is patted out into a huge circle, and then the cooked and mashed beans are spread on top. You roll the whole thing up, and then lop off chunks to put into your corn husk.
Next on the list of cooking with friends: Thai food tonight with a friend who used to live in Portland, and next week pozole with her mom.