This low carb white sauce is super easy to make and is the perfect accompaniment to many meat, fish, and vegetable dishes. A keto, gluten free, and LCHF recipe with video tutorial!

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White sauce, or Bechamel - as it is also known, is a classic recipe made from butter, milk and flour. This low carb version is not authentic in the slightest - but it is a great substitute! It has a great mouthfeel and only includes "real" ingredients! No thickeners or anything artificial.
Check out all my low carb sauces!
I've made a video tutorial to show you just how simple this keto bechamel sauce is to make - so watch this or scroll down for the full instructions and printable recipe card.
How to Make Low Carb White Sauce
Add cream cheese, heavy cream and water to a saucepan. You can use reduced fat or full fat cream cheese - the reduced fat version will result in a slightly carbier sauce. See the recipe notes below for data and read more about the effect that reduced fat versions have on carb count here.

Heat over a low heat until the cream cheese has melted. Place an egg yolk into a small bowl and temper it by adding a small spoonful of the cream mixture into the bowl and mixing well.

Then add the egg yolk mixture into the saucepan. Keep cooking for a few minutes until the sauce has thickened, stirring constantly. Add salt and pepper to taste, if you think it needs it!

This keto white sauce is one of the key elements of my Low Carb Lasagna!
It could also be used in place of the sauce for my Low Carb Moussaka, or simply poured over meat, fish or vegetables. I particular love it with leeks as a special treat - as part of the onion family, leeks aren't super low in carbs, but aren't high for a vegetable either. This sauce complements them perfectly!
Just *don't* be tempted to eat this low carb white sauce by the spoonful - otherwise you might find you have to make another batch - it's that good! 🙂
You might also like my low carb parsley sauce!
This amazing #lowcarb White Sauce takes just minutes to make and uses only three ingredients! #lchf #glutenfree #keto Share on X
📖 Recipe
Low Carb White Sauce
This low carb white sauce is super easy to make and is the perfect accompaniment to many meat, fish, and vegetable dishes. A keto, gluten free, and LCHF recipe with video tutorial.
Ingredients
- ½ cup (4 oz) cream cheese
- ½ cup heavy cream
- ¼ cup water
- 1 egg yolk
- salt and pepper, to taste
Instructions
- Add the cream cheese, cream and water to a saucepan and cook over a low heat until the cream cheese has melted.
- Temper the egg yolk by adding a little of the cream sauce to it, mixing well, then adding the yolk back into the cream mixture.
- Stir constantly over a low heat for a few minutes until the sauce has thickened.
- Season with salt and pepper to taste.
Notes
Full fat cream cheese: 2.2g net carbs per serving (as shown in data panel)
Reduced fat cream cheese: 3.1g net carbs per serving
This recipe makes four servings.
Nutrition Information
Yield 4 Serving Size Quarter of the recipeAmount Per Serving Calories 214Total Fat 21gSaturated Fat 12gCholesterol 120mgSodium 105mgCarbohydrates 2.2gNet Carbohydrates 2.2gFiber 0gProtein 3g
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Cristiane
Wednesday 11th of February 2026
I wanted mac and cheese with ham. I made the sauce and used baked ham juices for the liquid. Then I added all my traditional mac and cheese ingredients, including sharp Cheddar, then some low carb noodles, threw it in oven and broiled top. Just what I was looking for! It's amazing. Thank you for answering my mac and cheese dreams!
And now that I've made it, I'm thinking I could use the cream cheese, some whipping cream, and adding no liquid to substitute for "cream of" soups in my casserole recipes. Will let you know....
Maz
Wednesday 11th of February 2026
Fantastic sauce, so easy and delicious. Have used it multiple times but the (keto and diabetic) family favourite is with smoked fish, boosted with onion, lemon juice and zest and a dollop of mustard. Delicious, thank you!
Ann
Sunday 26th of May 2024
Made this recipe several times now. I add mozzarella & Parmesan to make a cheese sauce. It’s brilliant. Especially now my husband is now diabetic too. Thank you so much for sharing this recipe
libby
Saturday 2nd of April 2022
White sauce is fabulous. Will make this every time now when I need white sauce. So easy and no fuss. The Naan bread appeals too so will give that a go and the zabablione makes a change from egg custard. Thank you and I wish you well.
Georgina
Saturday 2nd of April 2022
Thanks Libby!
Cathy
Wednesday 23rd of February 2022
Can you make it ahead of time then reheat?
Georgina
Tuesday 1st of March 2022
I haven't tried it on its own, but when I make it and then add it to a low carb lasagna which then gets baked, it all holds together just fine!