Alfredo Sauce is a classic creamy pasta sauce that only takes about 15 minutes to make and features lots of Parmesan cheese. It can be served with pasta, chicken, shrimp, broccoli, and many other dishes.
Add pressed garlic and saute until fragrant (just a few seconds).
Sprinkle flour over it, start whisking, and slowly add heavy whipping cream WHILE whisking constantly. (I suggest using a silicone covered whisk so it doesn't scratch the pot). Heat through over medium heat as you slowly stir.
Whisk in sour cream, Parmesan cheeses, salt, and pepper. Lower heat to medium-low.
Keep cooking on medium-low heat for about 5-7 minutes, stirring often. (Do not let it boil.) Take off heat.
Fettuccine Alfredo:
This is one of the easiest pasta dishes you can make using this Alfredo sauce recipe. You can cook the pasta while preparing the sauce, drain off pasta water, and mix it with the desired amount of sauce.
Or, prepare the sauce ahead of time and refrigerate it. When you're ready to make the pasta, cook it according to the package instructions, drain, and stir the sauce into the freshly made, still hot fettuccine. (No need to heat up the sauce because the hot pasta in a still hot pot will warm it up nicely.)Feel free to add some extra parmesan cheese on top of Fettuccine Alfredo!
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Notes
Gluten Free: it is easily make gluten free by using gluten free all purpose flour. There is not much flour that goes into the sauce because the sauce gets most of its thick texture from Parmesan cheese and sour cream. So use the same amount of all purpose gluten free flour as calls for in the recipe.
Heavy Whipping Cream: Heavy whipping cream is the best option for a rich and creamy Alfredo sauce. If you’re in a bind, you can use half and half but it will be slightly thinner and not as rich. To make the sauce thicker when using half and half, add another 1/2 tbsp of flour and use a little more parmesan cheese. Don’t use anything less rich than half and half!
Lactose Free: If you need to keep this recipe lactose free, use lactose free half and half. Parmesan cheese is aged and aged cheeses are usually naturally lactose free. (As always double check the packaging for sugar content or lactose statement.)
Storing: Store Alfredo sauce in a glass jar with a lid in the refrigerator for 3-5 days.
Make Ahead: You can prepare the sauce ahead of time and refrigerate it. When you’re ready to make the pasta, cook it according to the package instructions, drain, and stir the sauce into the HOT freshly made fettuccine. The hot pasta will re-heat the sauce!
DO NOT bring the cream to boil! Cook over medium to medium-low heat. It’s okay to bring the cream to a low and slow simmer but turn the heat down right away.