In a frying pan, sauté the onions in the oil or butter over medium heat until translucent. Add the sugar and saffron, and continue to cook until caramelized and jamlike. Add the raisins and almonds, cooking until almonds are golden.
Prepare the couscous according to the package instructions, seasoning it with salt and freshly ground black pepper to taste. Mound the couscous in the middle of the plate and surround with the onions, raisins, and almonds.