Instructions: Wash chiles, remove stems, seeds and veins. Add chiles to pot of boiling water; cover and remove from heat. Soak until soft, about 1 hour. Drain, but reserve soaking water.

Place chiles, garlic, onions and 2 cups of soaking water in a blender.

Puree until smooth. Thin with more soaking water if sauce is too thick.

Strain sauce and add cumin. Season with salt to taste.

Simmer uncovered over low heat for about 10 minutes. If sauce tastes bitter, add sugar. Cover to keep warm.

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