Japanese Glazing Sauce for Pork Skewers

Name: Japanese Glazing Sauce for Pork Skewers
Prep time: 5 min
Cook time: 10 min
Total time: 15 min
Yield: 125 ml (1/2 cup)
Ingredients: 1/2 cup (125 ml) soy sauce; 1/2 cup (125 ml) sake; 1/4 cup (60 ml) mirin; 1/4 cup (60 ml) brown sugar; 2 cloves garlic, finely chopped; 5 slices fresh ginger, peeled