Guajillo Salsa

This is a proper Mexican salsa built from dried guajillo chiles, and the technique here teaches you a fundamental skill: how to rehydrate and roast dried chiles correctly. Get this right, and you unlock dozens of authentic Mexican sauces.

Guajillos are the workhorse chile of Mexican cooking. They’re mild enough to use generously, with a fruity, tangy flavor and that gorgeous brick-red color that makes a salsa look as good as it tastes. Roasting them briefly before rehydrating deepens the flavor and adds a subtle smokiness.

Toasted pepitas (pumpkin seeds) blended into the sauce add body and a nutty richness you won’t find in a basic tomato salsa. The final step of refrying the pureed sauce in hot oil concentrates the flavors and transforms the texture from raw puree to a rich, cooked sauce with a deeper, rounder flavor.

Pro Tips

• Don’t scorch the chiles during dry-roasting. Three to four minutes with a shake or two is enough. Burnt guajillos turn the entire sauce bitter, and there’s no fixing it.
• Rehydrate in water just below boiling, not in a rolling boil. Boiling water leaches flavor out of the chiles into the water.
• Taste the soaking water before using it. If it’s bitter, discard it and use fresh water for the puree.
• The refrying step is not optional. Cooking the pureed salsa in hot oil for 3-5 minutes transforms it from a raw-tasting puree into a smooth, cohesive sauce.

Variations

• Blend in a chipotle pepper for a smokier, spicier version.
• Use this as an enchilada sauce by thinning with a bit of chicken broth after refrying.
• Add a tablespoon of honey or piloncillo to balance the vinegar for a sweeter table salsa.