While this is a great dipping sauce for sushi, tempura and sashimi I also use it as a marinade and a salad dressing -options are given below.
1 cup mirin (sweet cooking wine)
2 cups shoyu (fermented soy sauce)
4 ounces katsuobushi (dried tuna fish flakes)
Place the mirin in a saucepan over medium heat, add the shoyu and bring it to a gentle boil. Switch off the flame and then add the fish flakes. Let it rest until it reaches room temperature. Whisk it again. Strain the shoyu through a fine strainer. Bottle and refrigerate for up to 6 months. Scan be served chilled from the fridge as well as at room temperature but whisk it before use.
Combine half cup Tsukejoyu with 1/4 cup vegetable oil and 2 tbsp toasted sesame oil, 1 tsp toasted white sesame seeds and juice of one lemon, 1/2 tsp or. more ground wasabi paste. Drizzle over cucumber, tomato and lettuce salad.
Noodle salad dressing
Combine 3/4 cup Tsukejoyu with 1/4 cup crunchy peanut butter, 2 tsp finely minced garlic, 1/2 cup finely chopped scallions, 1 tbsp red pepper hot sauce of your choice. Adjust for sweetness with brown sugar and toss with 200 grams of noodle salad.
Combine 1 cup Tsukejoyu with 1 tbsp ground ginger root paste, 1/2 tbsp fermented red chilli paste, 1 cup good quality orange juice, 1 teaspoon orange zest and salt to taste. Pour over 750 grams of chicken, fish or pork and marinate overnight. Grill or roast the meat as desired. Thicken the leftover marinade with some corn starch and serve with the cook meat.