The main ingredient in a traditional mole sauce is chili peppers, which impart complex flavors and varying degrees of heat to the dish. Mole is a rich sauce that often includes a variety of additional ingredients such as chocolate, spices, nuts, and seeds, combining elements of sweetness and spiciness. The most famous type of mole is mole poblano, which features a blend of dried chilies, tomatoes, sesame seeds, and cinnamon. Mole is commonly served over meats, like chicken or turkey, and its preparation can vary significantly across regions in Mexico, showcasing the versatility and cultural significance of this dish.