Prepare the Ingredients: Start by gathering all your ingredients. Mince the garlic and grate the ginger.
Combine the Ingredients: In a small saucepan, combine the soy sauce, mirin, sugar or honey, minced garlic, and grated ginger.
Simmer the Sauce: Bring the mixture to a gentle simmer over medium heat, stirring occasionally. Let the sauce simmer for about 10-15 minutes, allowing the flavors to meld together.
Adjust the Flavor: Taste the sauce as it simmers and adjust the ingredients as needed. For a sweeter sauce, add more sugar or honey. For a spicier kick, add chili flakes.
Achieve the Desired Consistency: Continue simmering until the sauce is thick enough to coat the back of a spoon. If it’s too thick, add a splash of water or soy sauce; if too thin, simmer a bit longer.
Cool and Store: Once the sauce has reached the desired consistency, remove it from heat and let it cool completely. Transfer to an airtight container and store in the refrigerator for up to two weeks, or freeze for longer storage.