Keto French Onion Dip

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This Low Carb French Onion Dip recipe is perfect for parties, game time snacking and more.

You can make this Keto Friendly Dip in about five minutes of active time. It’s great on charcuterie boards with crisp veggies and on wraps and sandwiches.

Low Carb French Onion Dip with Veggies


  • 1/2 cup mayonnaise – (8 tbsp)

I know that you know that you should be using full fat mayonnaise when you are limiting your carbs…but I just had to check.

Fat keeps low carb eaters full and happy.

  • 1/2 cup sour cream– (8 tbsp)

Full fat sour cream makes this dip luscious and creamy.

  • 1 teaspoon Dijon mustard *optional but delish

Mustard is not usually included in French Onion Dip but it gives it a little zip.

If you choose to use fresh garlic, just make sure it’s minced fine.

  • 1 tbsp dried onions

Dried onions are what give this dip the “Onion Soup Mix” flavor. I have made this recipe with both fresh and dried onion over the years.

Both are good but I really prefer the dried onions because they soak up the sour cream and mayo and taste like the classic dip.

To each his/her own though. If you are using fresh onion, use 2-3 tablespoons and mince it finely.

I never follow the amount for black pepper in any recipe…not even my own. I keep it reasonable and ask that everyone taste, taste, taste what they make.

  • 1/4 teaspoon salt *to taste

You can use any kind of vinegar that you have handy. Red wine and apple cider are my favorites.

  • 1-2 tbsp Allulose * granulated and to taste

Does it sound weird to put sweetener in dip? It makes this Keto friendly dip taste fantastic, don’t skip it.

You can use your favorite low carb sweetener.


  • chives for garnish

Fresh garnish always makes dips look inviting and taste super fresh (even if you made it ahead of time).

  • fresh parsley for garnish

👩🏿‍🍳How to make the French Onion Dip:

  • Put everything in a bowl and mix until combined. Chill at least 1 hour before serving.

Taste the dip before you chill it. Does it need more “twang”? Salt? Pepper?

This is the time to add anything you want to customize it to your tastes…before the flavors all blend and meld.

Flavor improves for 3-4 days covered in the fridge.

📋Tips & FAQ’s:

Can I make the Onion Dip ahead of time?

Yesssss! The longer you chill this onion dip, the more the flavor improves.

What other low carb snacks should I serve with the Keto friendly dip?

It’s fantastic on Cobb Salad (OMG).

That’s all for the Low Carb French Onion Dip!

I hope you love this recipe and that it makes eating low carb just a little bit easier.

That’s why we share recipes…we want everyone to feel like they can do this thing.

Leave a comment, question or knock knock joke below if you feel inclined.

Toodaloo for now….


Low Carb French Onion Dip FI

Easy Naturally Low Carb French Onion Dip

This easy dip takes about 5 minutes to make and is perfect for veggie platters and charcuterie boards. Classic taste and no fuss.
5 from 3 votes
Prep Time 5 minutes
Chilling time 1 hour
Total Time 1 hour 5 minutes
Course Condiments, Snack
Cuisine American
Servings 4 Servings
Calories 253 kcal


Mixing bowls
Measuring Cups


  • 1/2 cup mayonnaise (8 tbsp)
  • 1/2 cup sour cream (8 tbsp)
  • 1 teaspoon Dijon mustard *optional but delish
  • 1/4 teaspoon garlic powder
  • 1 tbsp dried onions
  • 1/4 teaspoon black pepper *to taste
  • 1/4 teaspoon salt *to taste
  • 2 tbsp red wine vinegar
  • 1-2 tbsp Allulose * granulated and to taste


  • chives garnish
  • fresh parsley garnish


  • Put everything in a bowl and mix until combined. Chill at least 1 hour before serving. Improves for 3-4 days covered in the fridge.
    Low Carb French Onion Dip FI


This nutritional info for this recipe is based on making 4 servings of about 5 tbsp each.


Serving: 5tbspCalories: 253kcalCarbohydrates: 2gProtein: 1gFat: 27gSodium: 361mgFiber: 1gNet Carbs: 1gFat Ratio per Serving: 96.05%Protein Ratio per Serving: 1.58%Carb Ratio per Serving: 1.58%
Keyword gluten free
Tried this recipe?Mention @ketocastleinthemountains or tag #ketocastleinthemountains!

The nutritional information for the Low Carb French Onion Dip Recipe is provided as a courtesy.

We are pretty careful about our figures but if you ever feel like anything is off please feel free to do your own calculations.

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