Put all the chicken broth ingredients in a large pot and let boil for a couple of minutes. Turn down to low heat, cover, and keep warm.
Make Soup Seasonings
Whisk well all the soup ingredients in a small bowl. Divide the sauce into 2 Ramen bowls. Set aside.
Make Miso Pork
Heat sesame oil in a frying pan, and cook pork until browned. Add onion and cook a minute longer. Add the rest of the ingredients, stir and cook for a couple of minutes. Remove from heat and set aside.
Assemble Ramen
Cook Ramen noodles according to the package. Drain well.
Pour the chicken broth in 2 bowls with the seasonings and stir. Add cooked noodles. Top with Miso Pork and other toppings.