This is the BEST Keto Creamy Mustard Sauce recipe you will ever find! Simple ingredients come together to form the most delicious sauce that is worthy of any holiday ham, other meal, as a delicious dipping sauce or to drizzle on roasted vegetables!
This five-minute mustard cream sauce is the perfect way to liven up a weeknight meal or add some decadence to an indulgent weekend feast.
Perfect to drizzle over ham, chicken, beef, salmon and vegetables, this versatile sauce is vegetarian, low carb and gluten-free.
A good sauce is an important component in any cook’s arsenal, with little effort it can take a dish from ‘nice’ to ‘that’s amazing’!
This creamy sauce works with so many main dishes, you’ll be spooning it over everything!
Where did this Keto Creamy Mustard Sauce come from?
Believe it or not, I was fortunate enough to be given this recipe by a patient of mine who actually graduated from Le Cordon Bleu culinary school in France!
For those of you who don't know, Le Cordon Bleu is a world-renowned network of educational institutions dedicated to providing the highest level of culinary and hospitality instruction through world-class programs.
Le Cordon Bleu is considered to be the guardian of French culinary technique through its culinary programs that continue to preserve and pass on the mastery and appreciation of the culinary arts that have been the cornerstone of French gastronomy for over 500 years.
By tweaking the recipe just a bit, I was able to create a low carb and keto-friendly version of the original!
What ingredients do you need to make this Keto Creamy Mustard Sauce?
- heavy cream
- mustard powder
- butter
- vinegar
- eggs
- sweetener
- salt
- OPTIONAL - Sugar-Free Maple Syrup
What type of sweetener did I use to make this delicious low carb Creamy Mustard Sauce?
For Keto Creamy Mustard Sauce, I used Allulose but I am sure that Bocha Sweet would work as well. Allulose and Bocha Sweet are the closest "relatives" to real sugar.
However, they are only about 70 % as sweet as most of the other sugar substitutes on the market so if you decided to use a different type of sweetener or if you use regular sugar, you will need to increase the amount of sweetener.
Since I love the flavour of maple and mustard, I added some Lakanto Sugar-Free Maple Syrup to add some additional sweetness to the sauce.
If you want to try a different type of sweetener, feel free to PLEASE check out my Guide to Keto Sweeteners before you swap the allulose for something else.
How do you make this Easy Keto Creamy Mustard Sauce?
- in a small saucepan, whisk the cream and powdered mustard
- add in all the other ingredients and bring the mixture to a simmer
- continue to simmer while constantly whisking until the sauce begins to thicken
- remove the pan from the heat and allow to cool
- the sauce will continue to thicken as it cools
How long will it take for the sauce to thicken?
This depends on the size of the saucepan you use.
A smaller saucepan has less surface area and therefore will take about 10 minutes. A larger saucepan with more surface area will take about 5 minutes.
Do not use a saucepan that is too large as the cream in the sauce can burn so you want at least 1 inch of sauce at the bottom of the pan.
After removing the sauce from the heat, it will continue to thicken so only allow the sauce to get to the consistency where it will cover the back of a spoon.
I personally like this sauce on the thinner side as I love to "drizzle" it on all my roasted veggies and meats so I only whisk it for 5 minutes.
How can you use this Keto Creamy Mustard Sauce
There is no lack of ideas when it comes to how to use this savoury sauce.
It is flavoursome enough to pair with cuts of beef like my Easy Pressure Cooker Garlic Roast Beef, or my Slow Cooker Beef Brisket. But this delicious creamy mustard is also always the perfect dipping sauce for my Whole30 Air Fried Chicken.
It’s also a perfect dipping sauce for my Air Fryer Fish Bites and my Crispy Slow Cooker Pulled Pork or simply just drizzle over veggies like my Caramelized Oven Roasted Carrots (Whole30).
How do you store this Keto Creamy Mustard Sauce?
This creamy mustard sauce can be stored in the fridge for up to 7 days in an airtight container.
Can you make this Keto Creamy Mustard Sauce ahead of time?
Absolutely!
You can make this sauce up to 5 days before serving. Simply allow the sauce to come to room temperature before serving.
Tips, Tricks and Substitutions:
- once the sauce begins to simmer, make sure that you whisk it constantly
- feel free to replace the sugar-free maple syrup with more sweetener
- you can replace the allulose with regular sugar
- you can add an additional tablespoon of honey or replace the sugar-free maple syrup with honey for more of a honey mustard sauce
- to make this recipe dairy-free, use full-fat coconut milk from a can instead of the heavy cream
- add additional salt to taste
- the sauce will continue to thicken as it cools
- the smaller the saucepan, the longer it will take the sauce to thicken
You can serve this Keto Creamy Mustard Sauce with the following:
Air Fryer Keto Roasted Brussels Sprouts and Onions
Air Fryer Prosciutto-Wrapped Chicken
How to Roast a Boneless Prime Rib - Ridiculously Easy!!!
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The BEST Creamy Keto Mustard Sauce
Keto Creamy Mustard Sauce is low in carbs and gluten-free. This delicious sauce is a recipe from the Cordon Bleu Cooking School. Serve alongside a turkey, ham or any side dish such as roasted Brussels sprouts, this creamy mustard dipping sauce is absolutely divine!
- Total Time: 7 minutes
- Yield: 1.5 cups 1x
Ingredients
- 4 tbsp dry mustard powder
- ½ cup sweetener
- pinch of salt
- 2 eggs, beaten
- ½ cup heavy cream
- ½ cup white vinegar
- 1 tbsp butter
- OPTIONAL - 1-2 tablespoon Lakanto Sugar-Free Maple Syrup
Instructions
- Place the cream in a heavy sauce pan and stir in mustard and sweetener using a whisk to make sure that no clumps remain. Add in the vinegar, beaten eggs, butter and maple syrup (if using). Cook over medium-low heat, stirring constantly, until the sauce thickens about 5-10 minutes.
Notes
- If you plan on serving this sauce at room temperature or mildly warm, any sugar substitute will work
- Prep Time: 2
- Cook Time: 5
- Category: Sauces
- Method: Stove-top
- Cuisine: American
- Diet: Gluten Free
Nutrition
- Serving Size: 1 tbsp
- Calories: 40
- Sugar: 0
- Fat: 4
- Carbohydrates: 1
- Protein: 1
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