Mexican cuisine is a fusion of indigenous Mesoamerican cooking and Spanish elements introduced after the Spanish conquest. The staples remain corn, beans, and chili peppers, but the Spanish added meat, dairy, and various herbs and spices. Over centuries, regional cuisines developed based on local conditions. Mexican cuisine is closely tied to Mexican culture and traditions, such as using mole for special occasions. For these reasons, it was added to UNESCO's intangible cultural heritage list.