From Bon Appétit, July 2003, Cooking for Health article. It says, “The Spanish sauce known as romesco is usually high in fat; this version contains less oil, but just as much flavor.” Dip can be made 1 day ahead. Cover and refrigerate. Bring to room temperature before serving. Nutrition info per serving: calories 36; total fat 3g; saturated fat 0; cholesterol 0.