Salsa Roja
Good salsa roja is about tension between the scorched sweetness of the tomatoes and the raw, sharp heat of the chiles. It is not a smooth puree; it is a rustic condiment made to be scooped, not poured.
Control the char, control the flavor
The goal is to blister the skin without turning the interior of the vegetables into mush. If your kitchen fills with thick smoke, your heat is likely too high.
- Cast-iron skillet
- Molcajete or food processor
- Tongs
What goes in.
- 1 lbRoma tomatoes
- 2serrano peppers
- 1/4 cupwhite onion, finely diced
- 1 clovegarlic, peeled
- 1/4 cupfresh cilantro, chopped
- 1 tspsea salt
Dry-roasting in cast iron
Do not add oil to the pan. You want direct contact between the vegetables and the dry, searing surface to encourage natural sugars to caramelize.
The method.
Char the vegetables
Place tomatoes and serranos in a dry, smoking-hot cast-iron skillet. Turn occasionally until the skins are blackened in spots and the tomatoes begin to soften, about 8 to 10 minutes.
Crush the aromatics
If using a molcajete, grind the garlic, salt, and half the onion into a paste. If using a food processor, pulse these ingredients once or twice.
Combine
Add the charred tomatoes and peppers to the aromatics. Pulse or crush until the mixture is broken down but still holds visible chunks of tomato skin.
Finish
Fold in the remaining raw onion and the cilantro by hand. Taste and adjust salt.
Other turns to take.
Salsa Tatemada
Add two tomatillos to the roast for a sharper, acidic backbone.
Creamy Roja
Add a small amount of neutral oil while blending to emulsify the salsa into a smoother, lighter consistency.
When it doesn't go to plan.
Serranos vary in heat; taste a tiny sliver of the pepper before charring to gauge how many to use.
Let the salsa rest for 15 minutes before serving so the flavors integrate.
If the tomatoes release too much water during roasting, strain the liquid before blending.
The ones that keep coming up.
Why use raw onion at the end?
The charred onion provides depth, but the raw onion added at the finish provides a necessary crunch and sharp brightness that keeps the salsa from tasting muddy.
Can I use canned tomatoes?
It is not recommended. The texture of canned tomatoes is too soft, and you lose the benefit of the dry-charring process.
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