Complex sentence: Major ingredients are red chili powder, glutinous rice powder mixed with powdered fermented soybeans, and salt, and naturally fermented over years in big earthen pots outdoors, traditionally on an elevated stone platform (hagul: 장독대) in the backyard.
Split into simpler sentences: Major ingredients are red chili powder, glutinous rice powder mixed with powdered fermented soybeans, and salt. Traditionally, it has been naturally fermented over years in big earthen pots outdoors, traditionally on an elevated stone platform (hagul: 장독대) in the backyard.