In a saucepan simmer the fresh tomatillos in salted boiling water to cover for 8 to 10 minutes, or until they are tender, transfer them with a slotted spoon to a bowl, and let them cool. (Alternatively, use a drained 11-ounce can tomatillos, see note above.) In a food processor or blender, puree the tomatillos with the coriander, to taste, the garlic, and salt, to taste, and transfer the mixture to a bowl. Halve and pit the avocados, chop the flesh, and stir it into the tomatillo mixture. Serve the salsa with tortilla chips or with hamburgers, grilled meat, or fish.
Recipe courtesy of Gourmet Magazine