Food EditionCookMexicanSideSalsa Roja
25 minEasyServes 4
Mexican · Side

Salsa Roja

Salsa roja relies on charring your vegetables to build a deep base before blending. You roast tomatoes, onion, garlic, and chiles until they blacken, then pulse them with salt and cilantro. The result is a smoky, textured sauce that anchors a meal.

Total time
25 min
Hands-on
15 min
Serves
4
Difficulty
Easy
Before you start

Char is non-negotiable.

Do not fear the black spots on the tomato skin. Those charred bits are the primary source of depth for this sauce.

  • cast iron skillet or heavy griddle
  • blender or food processor
  • tongs
Ingredients

What goes in.

  • 4roma tomatoes
  • 1/2white onion, peeled and cut into thick slabs
  • 2serrano chiles, stems removed
  • 2garlic cloves, skins on
  • 1/2 cupfresh cilantro leaves
  • 1/2 tspkosher salt
  • 1 tsplime juice
The key technique

Working the skillet

Heat your skillet until it smokes, then sear the vegetables dry. This concentrates the juices inside the tomatoes rather than boiling them away.

Step by step

The method.

  1. Char the vegetables

    Place tomatoes, onion, chiles, and garlic in the dry skillet over medium-high heat. Turn them only when the side touching the pan is deeply blackened.

  2. Remove aromatics

    Remove the garlic after 5 minutes when soft. Pull the chiles when blistered, and the onion and tomatoes once they yield to a light squeeze.

  3. Peel the garlic

    Peel the charred garlic cloves. Leave the blackened skin on the tomatoes and onions, as it provides the smoky character.

  4. Process

    Add garlic, salt, and chiles to the blender first. Pulse until minced, then add the remaining vegetables. Pulse again until the mixture is chunky, not a thin puree.

  5. Finish

    Stir in the cilantro and lime juice by hand. Taste for salt and add more if needed.

Variations

Other turns to take.

Salsa Taquera

Add one tablespoon of neutral oil to the finished salsa and fry it in a hot pan for 3 minutes to deepen the color and bind the flavors.

Tips & troubleshooting

When it doesn't go to plan.

Tip

If the salsa is too thick, add a tablespoon of warm water at a time until it reaches your preferred consistency.

Tip

The heat level is entirely controlled by the chiles; leave the seeds in for a sharper bite or remove them to mellow the sauce.

Tip

Taste the salsa while it is still slightly warm; the flavors change significantly as it reaches room temperature.

Questions

The ones that keep coming up.

Why do I leave the charred skins on?

The skin provides the essential smoky, charred notes that define a traditional salsa roja. Without them, the salsa will taste flat.

Can I use canned tomatoes?

Canned tomatoes lack the structural integrity required for the charring process. Fresh tomatoes are essential here.

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