Chill the cold noodle broth in the refrigerator.
Boil somen or cold noodle noodles in boiling water, then rinse in cold water.
Place the cooked noodles into a bowl.
Add toppings such as cucumber, boiled egg, and boiled beef.
Pour the chilled cold noodle broth over the noodles.
Add sesame seeds, vinegar, and mustard to taste.