Curtido is a Salvadoran fermented cabbage slaw, like sauerkraut, and with some kick. It is a tasty and healthy accompaniment to anything you might put cabbage on like tacos, enchiladas, pupusas, soups, brats, sandwiches, rice bowls, stir-fry dishes, and more. It's tangy and crunchy, and you can make it as spicy (or mild) as you like.  It’s quick and easy to prepare and keeps for months in the refrigerator, retaining its crunch and health benefits.