The BEST Homemade Alfredo Sauce Recipe (2024)

FAQs

What is the secret to thick Alfredo sauce? ›

The easiest way to accomplish this is to mix about a spoonful of cornstarch to 2 spoonfuls of liquid – it could be water or chicken stock or even milk. You will add this mixture, also called a slurry to the sauce and as it starts to cook, the sauce will thicken.

Fresh herbs will brighten and freshen the flavor of the sauce. Resnick suggests using parsley, thyme, oregano, or chervil, or mixing and matching depending on what you like. To use them, finely mince 2 tablespoons of your chosen herbs. Heartier herbs like thyme or oregano can be added in to simmer with the sauce.

Mix the cornstarch with some cold water to create a smooth slurry, then whisk it into the sauce while cooking over medium-high heat for a few minutes. Add all-purpose flour. Another very common thickening agent that will give your Alfredo sauce a creamy texture.

Extra seasonings and spices will go a long way in adding flavor to a boring jar of sauce. Some of my personal favorites include salt, pepper, Italian seasoning, dried basil, oregano, onion powder or seasoned salt. Start with small amounts (1/2 teaspoon at a time) and add as needed, in order to avoid over-spicing.

After 12 ounces of fettuccine pasta noodles are finished cooking, reserve 2 cups of the pasta water to include in your sauce. The starchy water is essential to creating a thick, creamy sauce consistency.

Real alfredo sauce is made with 3 simple ingredients: butter, Parmesan cheese and fresh fettuccine pasta. There is absolutely no cream in this dish (cream is common in most American-style alfredo sauce recipes). Make this dish with my fresh homemade pasta, fresh sourdough pasta or store-bought fresh pasta.

You can also mix it with water to create a slurry, similar to how you would add cornstarch. Or you can cook it with butter to create a roux. If you are using fresh pasta, you can even coat the pasta with flour before cooking it. That will thicken the sauce when you combine it with the noodles.

That bitterness could be acid from the tomatoes and one way people typically fix that is by adding a small amount of sugar.

However, if the sauce stays on the heat too long and too much water evaporates, it will break, since there's no longer enough water to hold the fat in suspension. If this happens, the sauce will look curdled and greasy.

Why did my homemade Alfredo sauce separate? ›

This happens when there's too much fat or liquid in the mixture. This can happen when there are not enough emulsifiers (which help keep your ingredients together). Sauces are usually made from multiple ingredients that include both oil and water. Oils and water will naturally separate.

You could just add garlic powder, sure, but quickly sautéeing fresh garlic while your pasta cooks is a great way to layer flavor. Resnick likes to add spinach as a way to cut the richness of the sauce. Add a tablespoon or so of olive oil and a few cloves of minced garlic in a sautée pan over medium heat.

In both cases, the emulsifying ingredient is often butter or cream, and if subjected to high heat for too long, the balance of fat and water is thrown off, which causes the split. Both of these kinds of sauces should only be simmered at a low temperature and only as long as necessary to achieve the desired consistency.

It really needs to be sauced as close to service as possible for best results. Starches in the sauce will continue to swell, and gain friends from the pasta. If you just need to thin out a batch you have already made, you could season the milk with recipe seasonings before adding it to thick sauce.

The most readily available sauce-thickener is flour. For a too-thin sauce, try adding a slurry (equal parts flour and water, whisked together) or beurre manie (equal parts softened butter and flour, kneaded together to form a paste)—both are ideal thickeners for rich and creamy sauces, such as steak sauce recipes.

Cornstarch: Make a slurry of half water, half cornstarch and whisk until smooth. Cornstarch is a powerful thickener, so start by whisking in no more than 1 tablespoon of the mixture per 2 cups of simmering sauce; stir and simmer for 2 minutes, check the thickness, and repeat with more slurry as needed.

Combine 2 tablespoons flour with every 1/4 cup cold water and whisk until smooth. Add the mixture to your sauce over medium heat, and continue to stir and cook until you've reached your desired consistency. Test with a spoon.

Bring the butter-cream mixture to a boil, then reduce the heat and simmer gently, uncovered about 3 to 5 minutes. Cook the sauce gently until it begins to thicken, stirring frequently with a wooden spoon. You'll know the Alfredo sauce recipe is thick enough when it coats the back of your spoon.