Instructions: Combine the cilantro, garlic, chile, and walnuts in a blender or food processor. Add 1/3 cup lemon juice, 1 teaspoon salt, the pepper, and cumin

(if using) and process to a smooth paste. Add enough water to obtain a pourable paste.

Taste for seasoning, adding salt and lemon juice as necessary; the sauce should be highly seasoned. Serve immediately, or at least within 4 hours of making;serve at room temperature.

Makes about 1 cup.

Coriander sauce is a tart, tangy condiment that is spooned over grilled kebabs, chops, and chicken. This version is a permanent fixture on the Afghan table. Similar sauces are found as far east as India and as far west as the Republic of Georgia. Walnuts help thicken and bind the sauce.

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