1 lb Fresh mushrooms
1/4 c Soy sauce
1/2 c Red wine vinegar
6 tb Sherry
4 tb Sugar
1 c Finely minced onions
Mix all ingredients but the mushrooms in a saucepan and bring to a boil. Pour over mushrooms that have been cleaned and halved or quartered depending on size. Marinate and chill fo 24 hours before serving. Small button mushrooms can be used whole.