Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/4  cup           onion -- chopped
     1/4  cup           peanut oil
   2      tablespoons   rice wine vinegar
   2      tablespoons   water
   1      tablespoon    ginger root; chopped
   1      tablespoon    celery -- chopped
   1      tablespoon    soy sauce
   1 1/2  teaspoons     tomato paste
   1 1/2  teaspoons     sugar
   1      teaspoon      lemon juice
   1      dash          salt & pepper

Preparation:

Combine all ingredients in blender or food processor; process until almost smooth.