keto alfredo sauce on top of chicken with piece cut by knife

Real & Authentic Keto Alfredo Sauce

Creamy, authentic keto alfredo sauce to top on shrimp, chicken, even beef! Made from scratch with added parsley and parmesan, Romano cheese. Perfect for a cream sauce for any keto dinner recipe!

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keto alfredo sauce poured over sautéed chicken

You’ll Love This Keto Alfredo Sauce

  • Made in under 10 minutes.
  • Creamy and smooth with fresh herbs.
  • Can be topped with any dish not just shrimp or chicken.

How To Make Keto Alfredo Sauce

  1. Start by melting butter in a medium hot skillet.
  2. While butter is melting add a tablespoon of pinched garlic. If you don’t have pinched garlic subbing for garlic powder will work but skip ahead and add the powder in last.
  3. Next, once you have sautéed the garlic a little pour in your heavy cream. Bring to a boil then simmer.
  4. Add in grated parmesan cheese. I actually use parmesan and romano mixed but one or the other works just fine.
  5. Chop some fresh parsley or use dried. Fresh is better of course but sometimes we have dried on hand already. If using dried a tablespoon will do because they are small bits. If using fresh chop it up and toss it in to your liking. About two tablespoons is desirable.
  6. Lastly, salt your sauce. I didn’t add pepper but you are welcome too. Pepper isn’t something you traditionally see in keto alfredo sauce.
  7. At this point the sauce should have thickened pretty well. If not thick enough continue to simmer or use about an eighth to a fourth teaspoon of xanthan gum to speed your process. Just be mindful less is more.


Helpful Recipe Tips

  • Non-stick skillet is your best friend here. When making keto sauces you can’t use a roux. So your are reliant upon slowly evaporating the water out of the cream. In a regular pan the sauce will stick rather quickly. So, a non-stick is your best friend in retaining that quality.
  • Use fresh herbs! Parsley is traditional but a fresh herb is best. When the herb is dried the flavor just isn’t the same.
  • Can you use cream cheese in place of parmesan? Sure you actually can but since the grated cheese is measured differently I’d go for 3-4 ounces for cream cheese instead.

Keto shrimp alfredo

Macros and Nutrition

Nutrition label and facts done via Cronometer. This is a rich keto alfredo sauce and fatty which is why it’s perfect for keto. Especially pairing with a low fat meat such as chicken, shrimp or turkey. A tablespoon isn’t is a full gram of carbs!


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keto alfredo sauce on top of chicken with piece cut by knife

Keto Alfredo Sauce

Creamy, authentic keto Alfredo sauce to top on shrimp, chicken, even beef! Made from scratch with added parsley and parmesan, Romano cheese. Perfect for a cream sauce for any keto dinner recipe!
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Prep Time 5 mins
Cook Time 10 mins
Total Time 15 mins
Course Main Course
Cuisine Italian
Calories 420.2 kcal


  • 2 tablespoon unsalted butter
  • 2 teaspoon minced garlic
  • 1/2 cup heavy cream
  • 2 ounces Pamesan Cheese
  • 1/4 teaspoon salt
  • 1/4 teaspoon black pepper


  • Set pan to medium heat
  • Add butter then minced garlic. Once garlic has browned a little pour in heavy cream. Toss in cut parmesan cheese.
  • Continue to cook until thickened. If too thin add a little more cheese if too thick add a little more cream until the consistency you want is there.
  • Note, if you use the grated parmesan you will have a hard time getting a thicker sauce.


Helpful Recipe Tips

  • Use fresh parmesan it makes a world of a difference. It thickens the sauce better, more flavorful and melts as it should because it's free of a non-caking agent.
  • If using Palmini noodles don't skip the step of adding into a milk based product and letting it soak for a while.
  • If using any water based noodles like zucchini do not heat them up in your sauce. The water will leak into your sauce and destroy it. Heat the zoodles in a separate pan or bowl. Then add them into your sauce. Note, there may still be a presence of water from the noodles but you can control it better.


Nutrition Facts
Keto Alfredo Sauce
Amount Per Serving
Calories 420.2 Calories from Fat 361
% Daily Value*
Fat 40.1g62%
Saturated Fat 25.3g158%
Trans Fat 1.4g
Cholesterol 117mg39%
Sodium 350.7mg15%
Carbohydrates 3.1g1%
Sugar 2.7g3%
Protein 11.9g24%
* Percent Daily Values are based on a 2000 calorie diet.
Keyword keto alfedo sauce
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