What is kimchi sauce and how is it traditionally used in Korean cuisine?

Kimchi sauce is a spicy and flavorful sauce made from fermented vegetables and seasonings. It is traditionally used in Korean cuisine as a key ingredient in making kimchi, a popular Korean side dish made of fermented vegetables, most commonly cabbage. Kimchi sauce is also used as a condiment or flavoring agent in various Korean dishes to add a tangy and spicy kick.