Ingredients:

    * 1 kilo tahong (green mussels); cleaned with beard removed

    * 3/4 cup vinegar

    * 4 tablespoons soy sauce

    * 2 cloves garlic, pounded

    * 1/4 tablespoon peppercorns

    * Cooking oil

Method:

   1. Sauté garlic in two teaspoons fo oil and then add the mussels. Cover and let stand for 2 minutes. 

   2. Add soy sauce, vinegar, and pepper.  Parboil and simmer until the shells are opened. 

   3. Continue cooking to reduce until little sauce remains.