Keto Fettuccine Alfredo Sauce is a creamy and comforting low-carb twist on the traditional Italian favorite! Classic Alfredo sauces are already on the lower side of the carbs scale, but several store-bought brands use thickeners or starches that are not keto-friendly. This homemade keto alfredo sauce is based on heavy cream, butter, and Parmesan cheese (some garlic), and yields a rich and velvety sauce with no added flour.
For depth, add garlic and a hint of nutmeg or black pepper, and sometimes cream cheese, for extra thickness and tang. The sauce is so fast and easy to put together on the stovetop; it takes only a few minutes of simmering for it to thicken just right.
Keto Alfredo sauce goes so well with low-carb pasta alternatives like zoodles, shirataki noodles, or spaghetti squash. It’s also great on grilled chicken, grilled shrimp, and steamed vegetables, making plain food taste like it came from a restaurant.
This sauce is a perfect part of your keto macros, high in healthy fats and moderate in protein, and the perfect comfort food that’s low carb and ketogenic. Plus, my lowest-sodium Alfredo sauce around! Keto fettuccine Alfredo sauce. This keto fettuccine Alfredo sauce proves that you don’t need the carbs to enjoy a creamy, decadent, pasta-style comfort meal, making it an absolute essential for your low-carb recipe arsenal.
Keto Fettuccine Alfredo Sauce Recipe
Ingredients
Equipment
Method
- Melt the butter in a saucepan over medium heat.
- Add minced garlic and cook, stirring 1 minute.
- Stir in heavy cream, whisking to combine, and simmer over medium-low heat for 5 minutes.
- Stir in Parmesan cheese, a little at a time, stirring constantly until melted and smooth.
- Season with nutmeg, salt, and pepper, and simmer an additional 2 minutes.
- Plate it over keto noodles replacements or chicken or steamed broccoli, and garnish with parsley.
Notes
Flavour Profile of Keto Fettuccine Alfredo Sauce
- Rich & Buttery- There’s a velvety underpinning of butter and heavy cream for indulgent richness.
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Cheesy & Savory– Parmesan that you can grate yourself will not only provide mellowness and salt, but also a considerable quantity of fat which will blend into the sauce, adding richness and creamy texture.
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Garlicky & A Fragrance-The garlic fills the samosa’s warmth and fragrance not too strong.
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Creamy & Silky- It’s smooth, coating every piece of your low-carb noods (aka zoodles or shirataki).
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Light Nutmeg Finish (optional)– Adding a little nutmeg gives the flavors just enough earthy sweetness.
Keto Fettuccine Alfredo Sauce Nutrition and Calories
| Nutrient | Amount per Serving |
| Calories | 220–250 kcal |
| Total Fat | 22–24 g |
| Saturated Fat | 13–15 g |
| Protein | 5–7 g |
| Total Carbohydrates | 2–3 g |
| Dietary Fiber | 0 g |
| Net Carbs | 2–3 g |
| Sugar | <1 g |
| Sodium | 250–300 mg |
FAQs
Q1. Is Alfredo sauce keto-friendly?
A1. Yes — On low-carb nights, it is perfectly fine to eat a classic Alfredo sauce that contains heavy cream, butter and cheese.
Q2. How many carbs is Keto Alfredo sauce?
A2. Approximately 2-3 net carbs per serving (¼ cup serving).
Q3. Is Alfredo sauce store-bought keto-friendly?
A3. Some brands are better than others, but many are laced with starches or added sugars — read labels carefully.
Q4. What cheese is best for Keto Alfredo?
A4. Freshly grated Parmesan or Pecorino Romano for flavor and richness.
Q5. Can I have a dairy-free Keto Alfredo?
A5. Yes — sub in coconut cream and nutritional yeast.
Hi, I’m Candice Knauer!
I’m passionate about creating delicious, healthy meals that make the keto lifestyle simple and enjoyable. What started as my personal journey into low-carb cooking has grown into a collection of recipes that I love sharing with others who want to feel their best while still enjoying great food.