Recipe For Alfredo Fettuccine Sauce. Add salt pepper and garlic salt. Add the garlic and lemon zest and cook until the garlic is slightly soft about 1 minute.
Slowly add the cornstarch water mixture stirring until the sauce begins to thicken slightly. Melt the butter in a skillet over medium heat. How to thicken alfredo sauce.
Cook pasta for about 12 minutes or until done then drain it.
This will thicken the sauce. Add the cheese and continue to simmer the sauce for 8 minutes or until thick. While the sauce cooks bring 4 to 6 quarts of water to a boil and add the pasta. Add the minced garlic garlic powder italian seasoning salt and pepper.