Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1       lb           Tamarind
   1 1/3   c            Cider vinegar
   1       lb           Guavas -- chopped, seeded
     1/2   c            Currants
   6       oz           Ginger, fresh
   1                    Chili pepper, dried
   1                    Garlic clove
   2       small        Onion, white
   2       tb           Mustard seed
   2       tb           Celery seed
   3                    Peppercorns -- crushed
   1       t            Allspice, ground
   1       t            Cloves, ground
   1       t            Salt

Preparation:

Soak tamarind pulp in vinegar, stirring to remove seed from pulp. When soft, press through a colander. Finely chop the ginger, pepper, garlic, peeled onions and mustard seed. Boil all ingredients 30 minutes and let stand overnight. Reheat to boiling and can in boiling water bath.