The sauce that made me stop missing pasta.
No flour. No fillers. No weird aftertaste. Just creamy, garlicky, cheesy goodness you can pour on zoodles, chicken, steak, or straight into a spoon.
š” Why This One Works So Well (Low-Carb Edition)
Most Alfredo sauces sneak in a roux (butter + flour) or thickeners that bump up carbs without adding real flavor. This one skips all thatāand still coats like a dream.
The heavy cream reduces slightly, the butter emulsifies, and the cheese thickens just enough. No xanthan gum, no regrets.
š§¾ What I Used (And Why It Worked)
- Butter (2 tbsp) ā Fat base. Carries flavor, blends with the cream. Go unsalted to control the salt level.
- Garlic (3 cloves) ā Flavor bomb. Donāt sub garlic powder unless you’re desperateāit won’t bloom the same.
- Heavy Cream (1 1/4 cups) ā Your fat and texture. Low-carb gold. Skip anything labeled ālightā or āwhipping cream.ā
- Parmesan (1/3 cup, finely grated) ā Thicker, saltier, cheesier. Use freshāgreen canister stuff wonāt melt right and tastes like dust.
š Keto Swaps That Actually Work
| Swap | Use Instead | Notes |
|---|---|---|
| Parmesan | Pecorino Romano | Stronger, saltier. Great if you’re dairy-tolerant but need more punch. |
| Heavy Cream | Coconut cream (unsweetened) | Works in a pinch but changes flavorāmore Thai than Italian. |
| Garlic | Shallot or roasted garlic | Milder, sweeter vibe. Still keto. |
ā ļø What Went Sideways (And Why)
| What Went Wrong | Why It Happens | How to Fix It |
|---|---|---|
| Sauce broke or separated | Heat was too high | Keep it on low to medium. Pull it as soon as it simmers. |
| Clumpy cheese | Added cheese while boiling | Take off heat first. Let residual warmth melt it gently. |
| Watery leftovers | Didn’t reduce cream enough | Let it simmer for full 5 mins before adding cheese. |
š©āš³ How to Make It (Step-by-Step)
- Melt butter in a saucepan over low heat. Add minced garlic. Cook 1ā2 minutes, until fragrant but not browned.
- Add heavy cream, bring to a gentle simmer. Stir occasionally and simmer for 5 full minutes to reduce slightly.
- Remove from heat. Stir in the parmesan. Let sit 5 minutesādonāt rush it. Then whisk to smooth out clumps.
- Serve immediately or store (see below). It thickens slightly as it cools.
Texture cue: It should coat the back of a spoonālike a light custard.

š§ Keto Cooking Tricks That Help
- I pre-mince a bunch of garlic and freeze it in oil in silicone traysāmakes this sauce a 5-minute job.
- Let the cheese come to room temp before adding. Cold cheese clumps.
- For an even thicker sauce (esp. if going over veggies), Iāll sneak in 1ā2 tbsp of cream cheese at the simmer stage.
š§ How I Store and Track It
- Fridge: Airtight jar or container, up to 3 days.
- Freezer: Yes, it freezes! Use a shallow container. Reheat gently to avoid separation.
- Reheat tip: Microwave on 50% power, stir every 15 seconds, or reheat stovetop on low.
- Macros after reheating: Still solid. Just re-mix if fat separates.
ā Can I Eat This on Keto? (Yes, Hereās Why)
Net Carbs: 1g per serving (based on 6 servings).
Itās all fat and flavorāno thickeners, starches, or hidden sugars. Just watch your parmesan brand (some add fillers).
š Nutrition Facts (Per Serving)
Serving Size: ~1/6 of total recipe (~1/4 cup)
| Nutrient | Amount |
|---|---|
| Calories | 196 kcal |
| Total Fat | 24 g |
| ā Saturated Fat | 15 g |
| ā Trans Fat | 0.5 g |
| Cholesterol | 77 mg |
| Sodium | 141 mg |
| Potassium | 49 mg |
| Total Carbs | 2 g |
| ā Fiber | 1 g |
| ā Sugars | <1 g |
| Net Carbs | 1 g |
| Protein | 3 g |
| Vitamin A | 889 IU |
| Vitamin C | 1 mg |
| Calcium | 102 mg |
| Iron | 1 mg |
Check out More Recipes:
- Low Carb Keto Pita Bread
- Low Carb Keto Lupini Beans Recipe
- Low Carb Keto Cheesy Cauliflower Rice
- Low Carb Keto Zucchini Alfredo
Easy Low Carb Keto Alfredo Sauce Recipe – Gluten Free
Description
Rich, creamy keto Alfredo sauce made with butter, cream, garlic, and parmesanālow in carbs, high in flavor, and ready in just 10 minutes.
Ingredients
Instructions
- Melt butter in a small saucepan over low heat. Add garlic, cook 1ā2 minutes.
- Add cream, bring to a simmer. Simmer gently for 5 minutes, stirring now and then.
- Remove from heat. Add parmesan and let sit 5 minutes. Whisk until smooth.
- Serve over keto noodles, protein, or veggies. Or just eat with a spoon. No judgment.
Notes
- Added cream cheese for extra thicknessāso good!
- Used white pepper instead of black to keep the color light.
- Tripled this for meal prepāfreezes great.
