For the Shoyu Tare, combine the ingredients except the rice vinegar in a saucepan and bring to a simmer. Simmer for 15 minutes, allow to cool. Then strain and add the vinegar.
For the Aromatic Oil bring the oils to 200C and add the onions and garlic. Stir until the onions are browned, then strain and allow to cool.
For each bowl of ramen use 480ml hot double Soup, 60ml of shoyu tare, 40ml of aromatic garlic oil. Add the noodles, arrange the toppings on top and serve.