"Text excerpted from ADVENTURES IN CHICKEN © 2017 by Eva Kosmas Flores. Reproduced by permission of Houghton Mifflin Harcourt. All rights reserved. "Alfredo is one of the simplest and richest pasta sauces out there; this version brings the flavors of the sauce up a notch by combining pecorino Romano, Parmesan, and Asiago cheese. To create a truly excellent Alfredo sauce it is vital to use quality cheese. Bypass the pre-shredded stuff in a plastic tub that's sitting at room temperature and only purchase ch..."