Mash the garlic, ginger and leek together. Mix together the mirin, soy sauce and sake. Add all the ingredients to a small saucepan and let cook slowly, over low heat, for five minutes. Combine the soy sauce flavoring with hot stock.
Place garnishes on top of the cooked noodles in the soy sauce flavored soup. Add ½ teaspoon lard to each serving and serve piping hot.
Manchurian wild rice stems, (menma or shinashiku) to taste
4 slices fishcake (naruto)
8 leaves parboiled and trimmed spinach, cut into thirds