Frijoles refritos

Refried beans is a dish of cooked and mashed beans that is a traditional staple of Mexican and Tex-Mex cuisine, although each cuisine has a different approach when making the dish. Refried beans are also popular in many other Latin American countries. The English "refried beans" is a mistranslation, since the essence of "frijoles refritos" is the reheating and mashing of the beans. In this dish, after being boiled and then mashed into a paste, the beans are fried or baked, though as they are fried only once, the term "refried" is misleading. As described by Rick Bayless, "they're refritos—not fried again, as you might assume, but 'well fried' or 'intensely fried.'" In Northern Mexico and Tex-Mex cuisine, refried beans are usually prepared with pinto beans, but many other varieties of bean are used in other parts of Mexico, such as black, Peruano, or red kidney beans. The raw beans can be cooked when dry or soaked overnight, then stewed, drained of most of the remaining liquid, and converted into a paste with a masher (such as a potato masher), or pressed through a fine mesh sieve (to remove the skins). Some of the drained liquid, or chicken or vegetable stock, is added if the consistency is too dry. The paste is then baked or fried, usually with onion and garlic in a small amount of lard, vegetable oil, bacon drippings or butter, and seasoned to taste with salt and spices. In Mexico, lard is most often used, and this has a large effect on flavor. Epazote is a common herb used to add flavor to the dish. It is also a carminative (i.e. it reduces the intestinal gas associated with beans).

Source: Wikipedia