Scrape down the sides a couple of times during blending, to make sure it's completely smooth. Transfer to a saucepan and heat gently over low heat until nice and hot, stirring frequently. Arrange the cooked fettuccini on a big plate, and pour the sauce over it. Sprinkle with the chopped basil, and serve. Add to the No-Fredo sauce just before pouring over the pasta.
Agar powder is available in bulk at health food stores.
Arrowroot is available in grocery stores. Used in combination, the two act as a binder. Add the onions, mushrooms, garlic, basil, thyme and salt. Remove from heat and set aside. Combine tofu, arrowroot, sesame oil and agar powder in a food processor.