Keto Alfredo Sauce
Rich, creamy and packed with flavor
This velvety smooth Keto Alfredo Sauce is so easy to make, uses only a handful of ingredients, and is loaded with creamy, rich flavor.
6
Servings
337
Calories
32.4g
Fat
4.4g
Protein
1.6g
Net Carb
1.6g
Total Carbs
It’s no secret that homemade sauces are better for you than jarred ones, but sometimes convenience wins. But it doesn’t get easier than this low carb alfredo sauce recipe. In less than 15 minutes, with only 5 ingredients, you’ll have a rich and creamy white sauce that’s super low in carbs and perfect to pour over top of shirataki noodles or hearts of palm pasta.
Other keto alfredo sauce recipes use cream cheese as a shortcut, which adds an extra 3 grams of carbohydrates per quarter cup. This ultra-low carb recipe uses egg yolks, whipping cream, and butter to create a thick, rich and creamy sauce.
How to make keto alfredo sauce
- Sauté butter and minced garlic. Add a pinch of nutmeg for extra flavor.
- Whisk the egg yolk into heavy whipping cream, then pour it into the garlic butter mixture.
- Cook while stirring for 5-10 minutes or until the sauce has thickened enough to coat the back of a spoon.
- Add parmesan cheese and noodles to the thick and creamy alfredo sauce.
- Stir in noodles. To make keto chicken alfredo, add sliced chicken.
Key ingredients & substitutions
- Butter – Use salted or unsalted butter; however, unsalted butter you can control the saltiness of the sauce. You can always add more salt at the end if it’s needed. Parmesan cheese also adds salty flavor to this keto alfredo sauce recipe.
- Garlic – If you can’t get your hands on fresh, jarred minced will work, but fresh garlic will have a much stronger flavor.
- Egg yolk – This sauce uses only egg yolks as a thickener for a rich and creamy sauce. But don’t throw out the egg whites. Save them for your next breakfast scramble or to make meringues!
- Heavy whipping cream – If you use a lighter dairy like half and half or milk, your sauce won’t have the same creaminess. Heavy whipping cream is the perfect thickness for a luxurious alfredo. And substituting with a nut milk (almond milk or coconut milk) won’t get your sauce thick and creamy.
- Parmesan cheese – A necessary ingredient in alfredo sauce; however, other hard cheeses like Parmigiano-Reggiano cheese, Pecorino Romano, Grana Padano or Pecorino can be used.
- Nutmeg – Just a small amount of nutmeg adds a warm and nutty flavor that complements this comforting chicken pasta, but it can be left out if you don’t have it.
Keto Alfredo Sauce Recipe Video
With 100s of videos and millions of views, Ketofocus is one of the most popular Keto channels on YouTube.
Keto Alfredo Sauce Ingredients
2 tablespoons butter
-
2 cloves garlic, minced
-
Pinch nutmeg, optional
-
1 egg yolk
-
1 ½ cups heavy whipping cream
-
1 cup grated parmesan cheese
Keto Alfredo Sauce Directions
-
Sauté garlic
Melt butter in a skillet over medium high heat. Stir in garlic and nutmeg (if using) and let cook until fragrant (about 30 seconds).
Ingredients
- 2 tablespoons butter
- 2 cloves garlic, minced
- Pinch of nutmeg (optional)
-
Thicken sauce
Whisk egg yolk into heavy whipping cream in a small bowl or measuring cup. Pour into garlic butter mixture and reduce heat to medium low. Continue stirring and cooking until the sauce has thickened enough to coat the back of a spoon (about 5-10 minutes). Do not let it boil.
Ingredients
- 1 egg yolk
- 1 ½ cups heavy whipping cream
-
Did someone say cheese?
Once thickened, stir in parmesan cheese. Season with salt and pepper. Add your choice of keto noodles if using.
Ingredients
- 1 cup parmesan cheese
- Salt & pepper to taste
Quick Tip
See below for keto noodle options.
Just made this tonight and it turned out smooth and luscious. I especially loved how quickly it came together for a weeknight dinner. The texture was perfect for coating zucchini noodles without feeling too heavy.
Can I substitute the heavy whipping cream with coconut cream to make this dairy-free, or would that affect the sauce’s ability to thicken properly in step 2?
Yes, you can use coconut cream. The flavor will be different but it should still thicken up.
I absolutely loved this Keto Alfredo Sauce. The combination of creamy heavy whipping cream and parmesan cheese makes it incredibly rich and satisfying. The use of an egg yolk to thicken the sauce is such a clever twist that adds to its velvety texture. Do you have this recipe featured in a cookbook? I’d love to have more recipes like this one all in one place!
Hi Ruth! I’m so glad you loved the Keto Alfredo Sauce—your kind words made my day! 😊 Yes, I actually do have a cookbook coming out, and it’s available for pre-order now: https://www.amazon.com/Protein-Packed-Low-Carb-High-Protein-Longevity/dp/1628605642. It’s full of protein-packed, low-carb recipes designed with longevity and flavor in mind—right up your alley! Thanks again for your support, and I hope you find lots of new favorites in the book! 💛
I made this alfredo sauce last night with zucchini noodles for myself. I made GF pasta for my husband and he raved about how good it was. He thought it was way better than the fettuccine alfredo he recently had at a very good restaurant! Note: I doubled the garlic because we’re garlic lovers! 🙂 I also added baby Bella mushrooms.
This was the easiest and best tasting Alfredo Sauce. I just shredded chicken and added to the sauce no noodles at all. It was delicious. Thank you so much for this recipe.
Ketofocus Can You Use Egg Wraps ForThe Noodles. Thanks
Yes, that would work. You can use any keto noodle you would like.
What is the green stuff sprinkled over the top
Parsley
Can this sauce break?
If so, why does that happen and can it be avoided?
Thank you in advance!
If it boils, it can break. Just have patience and heat it over medium low heat until it thickens the back of the spoon. It can take 5-10 minutes depending on your heat source.