Give this a try. Gochujang is pretty spicy, you may wish to start with less (2T) and add as desired..JJ
Korean BBQ Juice
1/4C Gochujang, Korean Red Pepper Paste
1/4C Soy Sauce or Fish Sauce
2T Mirin, Sweet Rice Wine
2T Rice or White Vinegar or as needed
1T Toasted Sesame Oil
1T Garlic, minced fine.
1tsp Grated Fresh Ginger
1T Peanut Butter (optional)*
Water as needed
Combine Gochujang, Soy Sauce, Honey, Mirin and Rice Vinegar.
Whisk until combined and set aside.
Add the Sesame Oil to a sauce pan and heat over medium heat.
Add the Garlic and Ginger and saute briefly until fragrant.
Add the sauce ingredients to the pan and bring to a simmer, stirring frequently.
Simmer to desired thickness adding Water as needed.
Taste and adjust adding more Vinegar or Honey to taste.
Makes about 1 Cup Sauce.
*Note: If using Peanut Butter, thin with water or Mirin until pourable then combine with the first group of ingredients. Some recipes add Ketchup but it is not traditional.