1 1/2Tbs.fresh lime juice - from about 1/2 lime; more to taste
6medium Roma tomatoes
3fresh jalapeño or serrano chiles - halved lengthwise, stemmed, and seeded
1clovegarlic - peeled
1cupcoarsely chopped fresh cilantro
1 1/2tsp.kosher salt; more to taste
Instructions
in a small bowl, soak the onion in the lime juice for 15 minutes.
in a dry, heavy-duty skillet (preferably cast iron) over high heat, “roast” the tomatoes, chile halves, and garlic clove until charred on all sides, about 2 to 5 minutes for the garlic, 8 to 10 minutes for the chiles, and 12 to 15 minutes for the tomatoes.
Pulse in a blender; the mixture should remain slightly chunky.
Transfer to a serving bowl and add the onion, lime juice, cilantro, and salt.
Taste and add more salt or lime juice if needed.
Notes
This salsa can be made up to a week ahead and refrigerated.
Return it to room temperature before serving.