Note: If the pasta is still undercooked after the cook time instructed, stir it up and make sure there is still some liquid in the pan. If the liquid has been fully absorbed, add an additional cup of water and cover the pan tightly with foil. Place the pan back in the oven and cook for 20 more minutes then taste the pasta again. Some people have reported having to cook the pasta for up to an hour to an hour and 15 min for it to be fully cooked.