5 from 2 votes

Keto Alfredo Sauce

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This easy Keto Alfredo sauce is so delicious; you won’t believe it’s keto! Quick to whip up on the stovetop, the grated Parmesan and flavorful garlic combined with simple ingredients are perfect for smothering on zucchini noodles or serving with chicken for the ultimate Keto Chicken Alfredo.

This pasta sauce can skip the pasta (and the carb count) for a perfect low-carb cheese sauce. 

stirring low carb alfredo sauce with a whisk.

Why you will love this White Sauce Recipe

Right now, you are probably searching for one of the following:

  • Alfredo sauce recipe
  • How to make Alfredo sauce
  • Easy Alfredo sauce

No fear, you have found it! Many fettuccini alfredo recipes contain (or store-bought alfredo sauces) extra additives like flour (which knock it right out of keto), but it’s an unnecessary ingredient. The thick Fresh Parmesan cheese and heavy cream keep this one perfect for pouring.   

Homemade Keto Alfredo sauce

Note: There is no cream cheese in this LOW CARB Alfredo Sauce; however, to thicken the sauce if you would like, add a bit and melt in. Many people are sensitive to cream cheese, so we purposely left this ingredient out. 

  • Butter – Unsalted butter works best as Parmesan cheese typically is a bit salty on its own. 
  • Heavy whipping cream – Full fat heavy whipping cream (not half and half or milk) provides cream sauces with the best rich flavor. 
  • Minced garlic – I keep a large jar of minced garlic in the fridge, but if you want to get fancy, you can oven roast garlic
  • Parmesan cheese – We use freshly grated Parmesan cheese. 
  • Optional: Italian Seasoning, Cajun seasoning, Black Pepper, and Chopped parsley for garnish (optional).
shredded parmesan cheese.

Low Carb Alfredo Complements Veggies

You can keep this meal keto-friendly by healthy baking some chicken and adding this recipe for Alfredo Sauce. 

But chicken isn’t the only way to enjoy low carb creamy sauces! Here are some delicious kitchen tips, from dinner recipes to unique but delicious crowd-pleasing options, that we suggest for your kitchen. 

  • Fettuccine, Ravioli, Tortellini – Absolutely NOT  diet or low carb in any way, but if you are my kids and can eat ANYTHING, this is how it’s served up. I like the cheese-stuffed tortellini’s or fettuccine alfredo if I add in the pasta noodles. Or have you tried pasta chips?
  • Pizza Topping– No need for red sauce! You can use delicious Alfredo as a basis for pizza. Top with additional cheeses and chicken to make this one. Or, if kept in the available ketogenic diet, you can make cauliflower pizza crust. I haven’t done it before, but I hear it’s yum.
  • Steamed Broccoli, Cauliflower, Asparagus, Fresh Green Beans, or Mushrooms– Steam up some fresh veggies and pour on the deliciousness! Veggies are a perfect way to soak up some Alfredo sauce. With whole whipping cream, butter, and garlic, you will be pretty pleased with how an ideal sauce lets veggies shine. 
  • Chicken – Grilled chicken tenders or baked chicken are quickly smothered with this sauce or used as a homemade sauce dip. Might be great with this creamy chicken recipe too!
broccoli over pasta.

How to make Keto Alfredo Sauce Recipe

Learning how to make simple homemade Alfredo sauce is not only a must but is way easier than you think. As a main traditional sauce usually combined with a favorite pasta (however, not in this case if you are keeping it clean), quality ingredients can make all the difference for the most delicious recipes.

  1. Melt butter, heavy whipping cream, and fresh garlic in a skillet and heat on medium low heat, frequently whisking until thick and bubbly.
  2. Reduce heat to low and stir in Parmesan cheese. Bring the sauce to a gentle simmer. 
  3. Continue to mix well until all cheese is melted. This can take a little time, so be patient. While not officially in the recipe, it is acceptable to season with salt & pepper (don’t overdo this), white pepper, or additional clove garlic for a more distinct flavor.
  4. Pour alfredo over pasta, veggies, or chicken top with chopped parsley if desired.
  5. It makes 2 cups of sauce that you can enjoy as a main dish or side dish. 
keto alfredo sauce recipe on the stove.

To thicken low carb Alfredo Sauce

I have never used flour in any alfredo sauce recipe ever. Parmesan cheese typically does that on its own for me. However, add a bit of cream cheese to the saucepan if you desire a thicker sauce without a traditional roux (and still keeping alfredo sauce keto). This keeps it keto, but the cream cheese provides a thicker sauce. 

How to store Alfredo Sauce.

Like most cheesy sauces, the longer it sits and cools, the more it starts to thicken and firm. To store this sauce, place it in an airtight container for 3-4 days. To reheat, place back in a saucepan and slowly heat till melty and warm. Add a bit of heavy whipping cream to thin. 

Can you freeze Alfredo Sauce?

Many food blogger recipes recommend putting sauce in freezer bags and freezing for a month. However, I have found that cheese can separate from the cold to the stove, so I avoid recommending this sauce as a freezer item. 

Low Carb Pasta Brands

Prefer to purchase some low-carb pasta to keep on hand? 

pouring alfredo over low carb pasta.
combine with low carb alfredo pasta noodles and chicken.
5 from 2 votes

Keto Alfredo Sauce (Low Carb Recipe)


Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Easy Keto Friendly Alfredo sauce with heavy whipping cream, full fat butter, flavorful garlic and delicious shredded Parmesan cheese is the perfect white sauce for low carb Italian night. Use as a topping for chicken or veggies like broccoli and asparagus. This low carb keto sauce is rich and creamy and FULL of flavor.

Ingredients
 

  • 1/4 cup butter
  • 1 cup heavy whipping cream
  • 1 teaspoon minced garlic
  • 1-1/2 cups Parmesan cheese
  • chopped parsley for garnish

Instructions

  • Melt butter, heavy whipping cream, and minced garlic to a skillet and heat on medium low heat, whisking frequently until thick and bubbly.
  • Reduce stove heat to low and stir in shredded Parmesan cheese.
  • Continue to whisk and mix Alfredo sauce ingredients on simmer until cheese is fully melted and incorporated. This can take some time so be patient. See notes for tips on consistency.
  • Once parmesan cheese and sauce is free from lumps, remove from the stove and serve on favorite low carb option like chicken or broccoli.

Notes

Alter consistency to thicker or thinner
Thicken: Add a bit of cream cheese to the saucepan if you desire a thicker sauce without a traditional roux (and still keeping alfredo sauce keto). 
Thin: Add more heavy whipping cream till desired consistency is reached.
How to store Alfredo Sauce.
Like most cheesy sauces, the longer it sits and cools, the more it starts to thicken and firm. To store this sauce, place it in an airtight container for 3-4 days. To reheat, place back in a saucepan and slowly heat till melty and warm. Add a bit of heavy whipping cream to thin. 
Can you freeze Alfredo Sauce?
Many food blogger recipes recommend putting sauce in freezer bags and freezing for a month. However, I have found that cheese can separate from the cold to the stove, so I avoid recommending this sauce as a freezer item. 

Nutrition

Serving: 0.5cup | Calories: 717kcal | Carbohydrates: 5g | Protein: 12g | Fat: 74g | Saturated Fat: 46g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 21g | Trans Fat: 1g | Cholesterol: 241mg | Sodium: 649mg | Potassium: 137mg | Fiber: 1g | Sugar: 1g | Vitamin A: 2654IU | Vitamin C: 1mg | Calcium: 381mg | Iron: 1mg

Nutritional Disclaimer: The nutritional data provided here is auto-calculated and intended for your convenience only. As it’s generated via automation, its accuracy may be compromised. For precise nutritional insight, please compute the values utilizing the actual ingredients in your recipe through your chosen nutrition calculator or application.

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5 from 2 votes

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2 Comments

  1. You leave out cream cheese (which IS keto) & put in FLOUR??? Sorry this is not keto.,

    1. Deb, this recipe is not a cream cheese alfredo sauce recipe, although you can add that in some flavors. Many people find it an overwhelming sauce flavor because of how thick it is.

      Second, as noted, if you are on Keto, use almond flour.

      1 tablespoon is only 2 carbs and is considered Keto and Low carb Friendly.

      That being said, if you use regular flour, its only 6 g of carbs and many people still use regular flour on dirty keto.

      These recipes are meant to be altered to your own dietary restrictions and are fairly easy to adjust.

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