Tangy, bright green salsa made from roasted or raw tomatillos with serrano chiles. This vegetarian, fresh condiment is a healthy, versatile family kitchen staple with zero guilt.
Preheat a skillet over medium-high heat. Place the tomatillos and serrano chiles in the dry skillet.
Roast the tomatillos and chiles for about 8-10 minutes, turning occasionally, until blackened spots appear and they soften.
Transfer the roasted tomatillos and chiles to a blender or food processor and allow to cool for 2 minutes; this prevents steam buildup.
Add chopped white onion, cilantro, salt, and lime juice to the blender. Pulse until a mostly smooth salsa forms, maintaining a slight texture.
Taste and adjust salt or lime juice as needed. Serve immediately or chill for 30 minutes to allow flavors to meld.