Roasted Tomatillo Salsa

Position rack in upper third of oven; preheat broiler to high. Line a rimmed baking sheet with foil.

Rinse tomatillos under warm water and pat dry. Place the tomatillos, jalapeño(s) to taste and garlic on the prepared pan. Broil, flipping everything halfway through, until well charred, 8 to 10 minutes. Let cool for 5 minutes. Remove seeds from the jalapeño(s), if desired. Peel the garlic.

Transfer the vegetables to a food processor. Add cilantro, lime juice and salt. Pulse until the salsa is blended, but still has a chunky texture. Stir in onion before serving.