Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   3      tablespoons   soy sauce
   5      teaspoons     katsuobushi
   2 1/2  teaspoons     sake
   1      pinch         msg
   2 1/2  teaspoons     wasabi -- (garnish)

Preparation:

Place all ingredients in a small saucepan. Bring to a boil, uncovered, stirring constantly. Remove from heat, strain, and set aside to cool. Divide into serving dishes and garnish with wasabi.