Active Time

　　20 min

　　Total Time

　　45 min

Ingredients

　　1 pound fresh tomatillos, husked, rinsed, and quartered

　　1 fresh serrano chile, seeded and chopped

　　1/2 large white onion, cut into 4 wedges

　　2 garlic cloves, chopped

　　1/2 cup water

　　1/2 cup chopped cilantro

　　1 tablespoon fresh lime juice

　　Coarsely purée tomatillos, chile, onion, garlic, water, and 1 teaspoon salt in a blender. Transfer to a large heavy skillet and simmer, stirring occasionally, until slightly thickened, about 15 minutes. Transfer to a bowl and cool to room temperature, then stir in cilantro, lime juice, and salt to taste.