Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  20      whole         red chili peppers -- fresh
   4      whole         plum tomatoes
   2      cloves        garlic
   1      teaspoon      ground cumin
   1      teaspoon      coriander
   4      teaspoons     red cayenne pepper -- optional
                        vinegar

Preparation:

remove stem and seeds from peppers. Put everything into blender or Mortar and pestle and process till smooth. add vinegar to reach desire consistancy.