For this recipe, you really do
need to use French lentils Ordinary
brown supermarket lentils can be
fine for soup, but for a good
lentil salad, you want those
beautiful little imported
gray-green lentilles du Puy If you
must, reasonable substitutes
include: the black so-called Beluga
lentils or the tiny Castelluccio
lentils from Umbria in Italy