Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1       medium       Onion, peeled and quartered
   2       small        Garlic cloves, peeled
   1 1/2   Teaspoon     Salt or to taste
   1       cup          Cilantro, minced
                        4 to 6 fresh serranos chilies   -=OR=-
                        2 or 3 jalapenos, stemmed and roasted whole
   1 1/2   cup          Tomatillos, husked, roasted or broiled in water
1/3 to 1/2 cup          water
           pinch        Sugar
   1       Teaspoon     Salt or to taste
   8                    Sprigs fresh cilantro, chopped
     3/4   cup          White onion, peeled and minced

Preparation:

Add onion, garlic and salt to a mortar or food processor. If using a mortar, grind well. If using a processor, pulse once very quickly. It is very important not to over process or the texture of the salsa will suffer. Add minced cilantro and pulse again, very quickly. Add chilies, tomatillos and water and pulse again. Season to taste. Garnish with chopped cilantro and onion. To prepare without a mortar or processor, mince all ingredients extremely finely and combine.