In a large bowl, mix soy sauce, sugar, gochujang, gochugaru, sesame oil, garlic, pear, onion, and sake/mirin.
6 tbsps Gochujang , 2 tbsp Gochugaru, 1/2 cup Soy sauce , 4 tbsp Sugar , 5 Garlic Cloves , 2 tbsp Sake or mirin , 1/2 small Onion , 1 ripe Korean pear or Asian pear , 2 tbsp Sesame oil