3 tablespoons Soy sauce
5 teaspoons Katsuobushi
2-1/2 teaspoons Sake
1 pinch MSG
2-1/2 teaspoons Wasabi
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.