In Mexico you can go to the market place and purchase thick pre-made mole pastes. The paste is typically heated in a pan with oil.. cooked, then diluted with water or broth to form a sauce. There are some products similar to this in the U.S. but none compare to the products sold in the market places in Mexico.
There are also mole sauces, not pastes available in the U.S. that are quite flavorful. See buy link.
Nutrition facts provided are for unprepared Mayordomo brand mole paste.