2 large firm, ripe avocados (Haas preferred)
1 tablespoon onion, finely chopped
1 tomatillo, outer husk removed, finely chopped (optional)
1/2 jalapeño pepper, minced
2 tablespoons Salsa Casera
1/4 teaspoon salt
1/2 teaspoon freshly ground black pepper
1/2 teaspoon ground coriander seed
1 tablespoon lime or lemon juice
1 tablespoon fresh cilantro, chopped; more for garnish