01 - Preheat your broiler or grill to high heat. Arrange tomatillos, poblano peppers, onion, garlic cloves, and jalapeño peppers on a baking sheet. Broil or grill, turning them periodically, until the tomatillos are blistered and the poblano peppers are charred and tender, approximately 8–10 minutes.
02 - Transfer the charred poblano peppers to a bowl. Cover the bowl tightly with plastic wrap and allow the peppers to steam for 5 minutes. Once steamed, carefully peel off and discard the charred skins and remove the seeds from the poblano peppers.
03 - Peel the softened garlic cloves.
04 - Combine the roasted tomatillos, peeled poblano peppers, onion, peeled garlic, jalapeños, fresh cilantro leaves, fresh lime juice, and sea salt in a blender or food processor. Process until the mixture is smooth but retains a slightly chunky texture.
05 - Taste the salsa and adjust the salt or lime juice content as necessary to achieve your desired flavor profile.
06 - Serve the salsa immediately. For optimal flavor development, refrigerate the salsa for up to 4 days.