I originally found this in a Junior League Cookbook from El Paso, Texas. It is called Mantequilla de pobre (Poor man's butter). I have tweaked the original recipe by adding garlic, jalapeño and a can of mild green chilies. People actually devour this - hardly coming up for air! I am frequently asked for this recipe, I am posting it so that I can just send the link! If I remember correctly, I usually end up adding a bit more of the red wine vinegar than is called for here. I think that really makes it! Don't omit the cilantro!!