Easy Keto Alfredo Sauce. Low carb and gluten-free.

Keto Alfredo sauce is the low carb, keto, gluten-free sauce that is perfect over zoodles and other low carb entrees! The Parmesan flavor shines through in this lusciously creamy low carb Alfredo sauce.

This sauce comes together in less than 15 minutes thanks to this recipe NOT having a roux as the base. The cream cheese acts as the thickener in place of the carb-heavy flour and fat roux.

This sauce is perfect if you have no carb and carb-loving people in the same family. One sauce can be made and served to everyone at the table.

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What ingredients do you need to make keto Alfredo sauce?

• Heavy Cream – full fat. none of that lite cream stuff.
• Butter – unsalted if you have it.
• Cream cheese – full fat
• Parmesan cheese – freshly grated will give you the smoothest sauce.
• Egg Yolk – read about why these are amazing in keto alfredo sauce below.

Creamy, Garlic Alfredo Sauce That Is Also Low Carb or Keto

I love all things garlic so naturally, I love a garlicy Alfredo sauce. I do not suggest using raw garlic in this sauce, it is too strong. I suggest using roasted garlic, garlic confit or garlic powder in this recipe. Start with 1 clove or 1/4 teaspoon and adjust your garlic flavor from there.

Flavoring this easy Alfredo Sauce

I graduated from Johnson & Wales University with my degree in International Baking & Pastry Arts and many of my friends were culinary students. They shared with me that the traditional Alfredo sauce has a bit of freshly grated nutmeg in it.

Not everyone is a fan of nutmeg so feel free to leave it out. I suggest you try it at least once because nutmeg does something magical to everything it touches.

I suggest seasoning your Keto Alfredo sauce with a touch of salt and pepper but what until just before serving it before adding it. Taste the sauce and adjust the seasonings. Parmesan has a great salty flavor so additional salt may not be needed.

How to make Low Carb, Keto Alfredo Sauce

1. In a medium bowl, whisk together 1/2 the heavy cream, 2 egg yolks, and 1/2 the freshly grated parmesan cheese. Set aside.
2. In a medium saucepan or wide skillet, melt the butter and cream cheese over medium heat whisking the ingredients together.
3. If adding garlic, whisk in the garlic.
4. Slowly add the heavy cream to the melted cream cheese, butter, and garlic. Ladling it in one ladle at a time, whisk and then repeat until 1/2 the cream is incorporated.
5. Add the parmesan cheese, one handful at a time, fully incorporating before adding the next handful.
6. Create a liaison of the cold egg, cream, cheese mixture by whisking in one ladle of hot sauce into the cold mixture. Repeat 3 more times.
7. Now whisk the liaison back into the pan making a delicious Alfredo sauce.
8. Continue to whisk until the Alfredo sauce has thickened.
9. To make the Alfredo sauce silky smooth, use an immersion blender or stick blender to blend the sauce.
10. Taste for seasoning and adjust as needed with salt and pepper.

Low Carb Keto Alfredo Sauce

Sarah Mock

Keto Alfredo sauce is the low carb, keto, gluten-free sauce that is perfect over zoodles and other low carb entrees!

5 from 10 votes

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Prep Time 1 min

Cook Time 10 mins

Total Time 11 mins

Cook ModePrevent your screen from going dark, toggle to button to the right to turn GREEN

Course Low Carb Recipes

Cuisine Italian

Servings 2 cups

Calories 666 kcal

Ingredients

 

US CustomaryMetric

 

1x2x3x

• 1 1/2 cups Heavy Cream
• 2 Tablespoons Butter
• 3 ounces Cream cheese
• 2 cups Parmesan cheese
• 2 Egg Yolk

Instructions

 

• In a medium bowl, whisk together 1/2 the heavy cream, 2 egg yolks, and 1/2 the freshly grated parmesan cheese. Set aside.
• In a medium saucepan or wide skillet, melt the butter and cream cheese over medium heat whisking the ingredients together.
  
• If adding garlic, whisk in the garlic.
  
• Slowly add the heavy cream to the melted cream cheese, butter, and garlic. Ladling it in one ladle at a time, whisk and then repeat until 1/2 the cream is incorporated.
  
• Add the parmesan cheese, one handful at a time, fully incorporating before adding the next handful.
  
• Create a liaison of the cold egg, cream, cheese mixture by whisking in one ladle of hot sauce into the cold mixture. Repeat 3 more times.
  
• Now whisk the liaison back into the pan making a delicious Alfredo sauce.
• Continue to whisk until the Alfredo sauce has thickened.
  
• To make the Alfredo sauce silky smooth, use an immersion blender or stick blender to blend the sauce.
  
• Taste for seasoning and adjust as needed with salt and pepper.
  

Notes

Fresh parmesan or parmesan in the can?

I am a HUGE fan of fresh grated parmesan cheese for this keto Alfredo recipe. The freshly grated cheese melts like a dream whereas the anti-clumping agents of the parmesan cheese in the green can will give you a grainy sauce. We want a SMOOTH creamy sauce. 

This recipe calls for 2 ounces of parmesan cheese. For me, that worked out to 2 cups of freshly grated, noncompressed shredded cheese.

Why is there egg yolk in the sauce?

I added egg yolks to this Alfredo sauce to help create an emulsion of the cream cheese, butter and cheese. It adds a bit of silkiness and helps keep the sauce from breaking, separating or becoming grainy in texture.

How to freeze and reheat Alfredo sauce:

If you are making a big batch of low carb Alfredo sauce you my want to freeze it for future use or as part of your weekly meal plan prep. Just be sure to cool the sauce completely before sealing it in an air tight container. To avoid freezer burn be sure there is plastic on the surface of the sauce.

To reheat the sauce, slowly warm it in a sauce pan, stirring constantly to keep the sauce from separating.

Nutrition

Serving: 1/2 cupCalories: 666kcalCarbohydrates: 11gProtein: 19gFat: 61gSaturated Fat: 37gPolyunsaturated Fat: 19gTrans Fat: 2gCholesterol: 273mgSodium: 1043mgSugar: 4g

Tried this recipe?Let us know how it was!

Sarah Mock

CEO/Owner/Founder/Culinary Blogger

Sarah Mock is a classically trained Chef and graduate of Johnson & Wales University. A culinary blogger for 12 years Sarah helps the home cook prepare her recipes with professional results.