3-Ingredient Alfredo Sauce

This quick and easy 3-Ingredient Alfredo Sauce is a thick and creamy garlic sauce, delicious on top of spaghetti or to flavor any vegetable casserole. Plus, it’s so easy to make that you won’t need any other recipes after that!

Table of contents

+ View More- View Less

This Alfredo Sauce is a creamy garlic cheese sauce usually made with butter, Italian Parmesan cheese, fresh garlic, and heavy cream. It’s a classic, rich sauce to combine with pasta like fettuccine pasta or spaghetti to make a creamy, comforting dinner.

Ingredients and Substitutions

All you need to make this lovely rich, creamy alfredo sauce are:

• Heavy Cream – Heavy Cream is a low-carb dairy product.
• Freshly Grated Parmesan Cheese – this is not the same as boxed parmesan. You must use fresh Italian Parmesan. It melts and forms a thick sauce.
• Garlic Cloves – peeled, crushed, or finely minced.

Optional ingredients are:

• Salt – Parmesan cheese is already salty, don’t add too much salt to avoid a strong salty flavor
• Black Pepper

How To Make 3-Ingredients Alfredo Sauce

It’s super easy to make alfredo sauce. Let me show you how you can make a 10-minute, 3-ingredient alfredo sauce recipe at home:

1. In a non-stick saucepan or cast-iron skillet, add the heavy cream, freshly grated parmesan, and minced garlic. Add the salt and black pepper if used.
2. Stir the Alfredo mixture and cook on low-medium heat until the cheese is fully melted and the sauce has reached a low simmer and starts to thicken.
3. Taste the Alfredo sauce and adjust with salt and pepper if needed.
4. Use the hot Alfredo sauce recipe immediately, with the suggestions below.

Storage Instructions

Another option is to store the sauce for later in a glass mason jar or any sealed, airtight container. Alfredo sauce can be stored for up to 3 days in the fridge. The sauce may thicken and form a layer of skin on top, but that’s fine.

When ready to eat, pour the sauce into a non-stick saucepan and bring it over medium heat until warm.

Serving Suggestions

This easy alfredo sauce recipe is perfect for any roasted vegetables, pasta or meat. Here’s some options below. This creamy garlic sauce is delicious on top of any low-carb vegetables.

In fact, grilled vegetables with no sauce can be bland in flavor, but as soon as you add 1/4 cup of alfredo sauce on top, it turns your vegetables into a comforting dinner or side dish. The vegetable to add to this sauce are:

• Roasted Brussels Sprouts – take my Brussels Sprouts with Mustard Sauce recipe as a starting point.
• Air-fried Broccoli or steamed broccoli
• Steamed Cauliflower, Smoked Cauliflower, or air-fried cauliflower.
• Blanched Asparagus or bacon asparagus
• Zucchini Noodles – use a spiralizer to turn your zucchini into noodles, as seen in my Zucchini Noodles. Stir fry for 2 minutes in olive oil, then cover with the sauce.
• Spaghetti Squash – check my tips on how to cook spaghetti squash for a perfect Spaghetti Squash alfredo recipe.

Another option is to use this sauce on store-bought pasta – noodles taste better with creamy sauce. There are plenty of delicious noodle pasta options I love with an alfredo sauce like:

• High-protein noodles – like edamame, black bean noodles
• Fettucine – like in my steak alfredo fettuccine recipe
• Spaghetti

This sauce is delicious on:

• Grilled Chicken Breast to make chicken alfredo or lemon pepper chicken tenderloins.
• BBQ Steak – use my steak marinade for the best flavor to make steak alfredo. Make sure to read my tips on how to perfectly cook a steak every time.
• Grilled Salmon
• Shrimps

How To Thicken It

If your sauce doesn’t thicken as much as you like, you can add some of the below ingredients to help it thicken up:

• More Freshly Grated Parmesan – adding 1/2 cup extra cheese helps thicken the sauce.
• Xanthan Gum – The best option to avoid high-carb thickeners. Sprinkle 1/4 teaspoon and whisk vigorously into the warm sauce to incorporate.
• Cream Cheese – add 1/2 cup of cubed cream cheese. It’s better if you bring the cream out of the fridge 30 minutes before adding it to the warm sauce. It melts easier.
• Corn Starch Slurry – dissolve 1 teaspoon of cornstarch into 3 tablespoons of cold water. Stir in the hot sauce and cook until the alfredo sauce thickens. Corn starch is high in carbs, but one teaspoon in the entire batch won’t raise the carbs much and keeps the sauce low carb.

Allergy Swaps

If you have some dairy allergies, you can make dairy-free alfredo sauce by replacing some of the ingredients in the recipe.

• Heavy Cream – Use canned coconut cream instead. It’s made with coconut cream only, with no added sugar or thickener, and it’s vegan.

Frequently Asked Questions

More Recipe To Make With Alfredo Sauce

If you want to use your Alfredo sauce with simple recipes, try these