This recipe cooks fregola, the small, round pasta of Sardinia, similar to risotto, adding liquid in multiple additions. This gives the grain-like pasta a thick, creamy consistency. Fregola likely requires a trip to the Italian grocery or specialty store. If you have trouble finding it, an equal amount of toasted pearl couscous is a good stand-in; see steps for toasting instructions. Also reduce the amount of chicken broth to 4 cups, adding it in two additions of 2 cups each. After cooking for 8 to 10 minutes following the second addition of broth, cooking is done; remove the pot from the heat and let stand, uncovered, for 4 minutes.