Our family loved the full flavor of this recipe, with the nice end kick of the serrano pepper. Delicious. A great recipe to play around with, but is fantastic just the way it is.
From EatingWell: March/April 2008
Turn an ordinary taco into something special with this creamy, herb-studded sauce in place of plain sour cream. It's traditionally made with Mexican crema, a tangy-sweet cultured cream; if it's available in your area, it can be used in place of the sour cream.