Prepare Ajitama: Poke a hole in an egg and lower it into boiling water. Cook for 6-7 minutes, then cool in an ice bath and peel.
Make Ajitama Tare: Combine 1 tablespoon shoyu, 1 tablespoon sake, and 1 teaspoon sugar in a small pan over low heat. When tiny bubbles form, add the peeled egg, rolling it in the sauce for 4-5 minutes.
Prepare Soup Base: Into a bowl, add 1 tablespoon shoyu, 1 teaspoon chicken stock powder, a pinch of grated ginger, and 1 teaspoon lard.
Cook Noodles: Boil ramen noodles according to package instructions. Strain well.
Assemble Ramen: Add 300 ml hot water to the soup base in the bowl. Stir to combine, then add strained noodles. Top with ajitama, sliced green onions, and nori.
Adjust Seasoning: Adjust the amount of shoyu to taste, depending on desired saltiness.