Couscous Salad with Currants, Pine Nuts, and Celery

In a large skillet melt the butter with the saffron over moderate heat, stirring, add the stock, and bring the liquid to a boil. Stir in the couscous, cover the skillet, and remove it from the heat. Let the mixture stand for 4 minutes and transfer it to a ceramic or glass bowl, breaking up any lumps with a fork. Add the celery, the currants, the scallions, the pine nuts, and the parsley and toss the mixture to combine it. In a small bowl whisk together the lemon juice and the cinnamon, add the oil in a slow stream, whisking, and whisk the dressing until it is emulsified. Drizzle the dressing over the salad, toss the salad, and season it with salt and pepper.