Charred Tomato Salsa Roja
Blistering tomatoes, chiles, and onions in a dry cast-iron skillet until blackened is the only way to achieve the deep, smoky base required for a true salsa roja. Once the vegetables are soft and charred, grind them with salt and garlic until they reach your preferred texture, finishing with a sharp hit of lime and fresh cilantro.
Don't fear the black spots.
The char provides the structure of the salsa; if you pull the vegetables too early, you end up with raw-tasting sauce instead of a depth-driven condiment.
- 12-inch cast-iron skillet
- mortar and pestle or food processor
- tongs
What goes in.
- 1 lbRoma tomatoes
- 2serrano peppers, stems removed
- 1/2white onion, cut into thick slabs
- 2garlic cloves, skins on
- 1/4 cupfresh cilantro leaves, chopped
- 1 tspkosher salt
- 1 tbspfresh lime juice
Cast-iron intensity
Use a dry skillet over high heat. The goal is carbonization on the skins of the vegetables, which acts as the bitter counterpoint to the sweetness of the roasted fruit.
The method.
Char the vegetables
Place tomatoes, serranos, onion slabs, and garlic in the dry skillet over high heat. Leave them undisturbed until the skins turn black and begin to blister, about 3 to 4 minutes per side.
Prepare the aromatics
Remove the garlic once the skin is charred and the clove feels soft. Peel away the skins and drop the garlic into your mortar or processor with the salt.
Create the base
Grind the garlic and salt into a coarse paste. Add the charred chiles and onions, pulsing or mashing until they break down.
Incorporate the tomatoes
Add the tomatoes to the mixture. If using a mortar, gently crush them; if using a processor, pulse briefly—you want texture, not a uniform puree.
Finish the salsa
Stir in the lime juice and fresh cilantro. Taste and adjust salt if necessary.
Other turns to take.
Arbol Heat
Add 4 dried chiles de arbol to the skillet during the last minute of charring for a deeper, nuttier heat profile.
Sweet Onion
Use yellow onion instead of white for a milder, slightly sweeter finish.
When it doesn't go to plan.
Leave the charred black skins on the tomatoes and peppers; they contribute the necessary smokiness.
If your tomatoes are watery, drain the excess liquid from the skillet before grinding.
For a rustic texture, always use a mortar and pestle rather than a machine.
The ones that keep coming up.
Should I remove the charred skin?
No. The char is the defining characteristic of this salsa.
How long will this stay fresh?
It is best consumed within 24 hours. The flavor profile changes significantly as the raw garlic oxidizes.
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