Red Salsa
PREPARATION
Purée tomatoes, chiles, onion, garlic, salt, and water in a blender until smooth.
Heat oil in a 10-inch heavy skillet over moderate heat until hot but not smoking, then carefully add tomato purée (oil will splatter) and simmer, stirring, until thickened, 8 to 10 minutes. When room temperature, stir in cilantro and some fresh chopped onion. Transfer to a small bowl.