Learn how to cook tamales! Pork leg hot tamales, to be specific. Add a whole onion to a pot of boiling water, along with four cloves of garlic. Next, add the pork leg meat and a little salt and cover it, letting it cook for about 1.5 to 2 hours. That's just how you get the meet prepared. Watch the whole video to learn about prepping the New Mexican chili peppers and the finishing touches.