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This keto alfredo sauce recipe is the best way to satisfy comfort food cravings in minutes! Unlike some store-bought sauces, this one is naturally low carb and keto, without any unusual ingredients or thickeners, like cornstarch. Serve this easy low carb alfredo sauce recipe with all your favorite keto pasta alternatives, pair with conventional pasta for non-keto eaters at the table, or serve it with my very favorite — keto egg noodles!
This easy fettuccine alfredo sauce recipe is just one of 100 comforting dishes in the new Easy Keto Carboholics’ Cookbook! Find dozens of recipes that taste like they’re high in carbs, but made for keto… including fluffy breads, deep fried foods, and classic potato, rice, and pasta dishes. Every meal fits low carb macros, and 75 of the recipes you’ll find in the book are brand new and not found anywhere else!
What Is Alfredo Sauce?
Unlike traditional red sauces, alfredo is a cream sauce traditionally made with butter, parmesan cheese, and spices. Store-bought sauces may also contain thickeners (such as flour or cornstarch), vegetable oils, or other added ingredients to keep them shelf-stable.
Why You’ll Love This Easy Keto Alfredo Sauce Recipe
Low Carb Alfredo Sauce Ingredients
This section explains how to choose the best ingredients for quick and easy alfredo sauce, what each one does in the recipe, and substitution options. For measurements, see the recipe card below.
How To Make Alfredo Sauce From Scratch
This section shows how to make low carb keto alfredo sauce, with step-by-step photos and details about the technique. For full instructions, see the recipe card below.
Frequently Asked Questions
No need to complicate this sauce! Get answers to all your questions here.
How To Thicken Alfredo Sauce?
This alfredo sauce recipe contains no thickeners, because it thickens naturally from the cheese, unlike other jarred sauces that rely on starches or flour. If you do wish to thicken the sauce more without adding substantial carbs, you can add more grated parmesan to your liking, or try a keto friendly cornstarch substitute.
Is Alfredo Sauce Keto?
Yes, with many high-fat ingredients and minimal carbohydrates, alfredo is naturally keto friendly. Some varieties (especially store-bought ones) contain extra ingredients that increase the carb count, so check labels and recipes to know exact macros.
Is Alfredo Sauce Gluten-Free?
Traditional alfredo is naturally gluten-free, and even store-bought sauces often avoid using gluten. Always check labels to be certain, though!
How Many Carbs In Alfredo Sauce?
This alfredo sauce recipe has 2.8g net carbs per 1/4 cup serving. Carbs in alfredo sauce at the store or at restaurants can vary widely, depending on what is in them.
Store this easy keto alfredo sauce recipe in a covered container in the fridge for up to 1 week.
Can You Freeze Alfredo Sauce?
Yes, you can freeze homemade alfredo sauce. Transfer it to an airtight container (ideally a freezer bag) and freeze for 2-3 months. It may be lumpy after thawing, but follow the reheating instructions to fix this.
If frozen, thaw in the refrigerator overnight or reheat directly from frozen. Reheat on the stovetop or microwave at low power until warm, stirring often to break up any lumps. If it’s still not smooth, you can give it a quick blend.
Since this sauce thickens during storage, you can thin it out with a little more cream as needed when you reheat it.
What To Make With Alfredo Sauce
Now that you know how to make easy alfredo sauce with heavy cream, you probably need ideas for ways to use it. Here are some recipes you can pair with this sauce, with no wheat-based noodles whatsoever!
Easy Low Carb Alfredo Sauce Recipe:
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Reader Favorite Recipes
The recipe card is below! Readers that made this also viewed these recipes:
This reader favorite recipe is included in The Wholesome Yum Easy Keto Carboholics’ Cookbook! Inside this beautiful hard cover keto recipe book, you’ll find 100 delectable, EASY keto recipes to replace all your favorite carbs: bread, pasta, rice, potatoes, desserts, and more… each with 10 ingredients or less! Plus, a photo, macros, & tips for every recipe.
Low Carb Keto Alfredo Sauce Recipe (Easy!)
This easy keto alfredo sauce recipe needs just 4 simple ingredients and 10 minutes! Plus, homemade low carb alfredo sauce is creamy, rich, and tastes much better than the jarred ones.
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Tap on the times in the instructions below to start a kitchen timer while you cook.
Melt butter in a medium saucepan over medium heat. Add minced garlic and saute for about 30 seconds, until fragrant.
Add the heavy cream. Bring to a gentle simmer, then continue to simmer for about 5 minutes, until it begins to thicken and volume is reduced by about 1/3. (Amount of time will vary depending on the size of your saucepan.)
Reduce heat to low. Gradually whisk in the Parmesan cheese. Keep whisking over low heat, until smooth. If using nutmeg, sea salt, and/or black pepper, stir those in, to taste. (If sauce is thicker than you like, you can thin it out with more cream.)
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Readers Who Liked This Easy Recipe Also Made:
Serving size: 1/4 cup
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