INGREDIENTS

Vegetable oil (as needed)   
1 cup Onion, grated, with juices   
2 tsp. Garlic, minced   
2 tsp. Ginger, minced   
1/4 cup Soy sauce   
1 oz. Mushroom soy sauce   
1 oz. Sesame oil   
1/4 cup Kecap (sweet soy sauce)   
1/4 cup Gochujang   
1 oz. Hoisin sauce    
1/4 cup Sake   
1/4 cup Mirin   
1 oz. Rice vinegar   
1/4 cup Brown sugar   
2 Tbsp. Water   
2 Tbsp. Corn Starch   

DIRECTIONS

1.) In a saucepan over medium heat, add oil and sauté onion for 3-5 minutes or until it has begun to dry out slightly and darken. Add garlic and ginger and sauté for an additional 2-3 minutes.

2.) Add soy, mushroom soy, sesame oil, kecap, gochujang, hoison sauce, sake, mirin, rice vinegar, and brown sugar. Bring to a simmer and cook for 10-15 minutes, stirring occasionally, until slightly thickened.

3.) Combine water and cornstarch and add the slurry to sauce. Continue to stir until thickened. Store refrigerated or hold hot for service.