From Zelda Legends Wiki
Link’s grandmother gives this delicious broth to him after he brings her back from the brink of despair. She will fill an empty bottle with this delicious soup. The effect it will have is astounding, to say the least. The soup will bring Link to full health, magic power and double his attack power until the next time he is hit. And Link’s grandmother filled it so full there are two servings! Isn’t she the sweetest? Unfortunately, he can only have one bottle of soup at a time.
Entry submitted by GraniteJJ.