This is a five-ingredient French-style vinaigrette built for a ketogenic diet โ olive oil, apple cider vinegar, Dijon mustard, a touch of honey, and salt and pepper. It takes five minutes to whisk together and works on any green salad you have going. The honey keeps the carb count low while still rounding out the vinegarโs sharpness.
What makes this version work
The mustard is doing real structural work here โ it acts as an emulsifier, helping the oil and vinegar stay combined instead of separating the moment you stop whisking. Dijon has enough body to hold the two together longer than plain yellow mustard would. Apple cider vinegar is milder and slightly fruity compared to white wine vinegar, which means the dressing doesnโt taste harsh even at a 2:1 oil-to-vinegar ratio. That balance matters most when youโre pouring this over bitter greens like arugula or radicchio, where a sharp dressing would compete rather than complement.
If something goes sideways
- Dressing breaks and looks oily: The emulsion split. Add a small drop of extra Dijon to the bowl and whisk the broken dressing back in gradually โ the fresh mustard gives it something new to bind to.
- Tastes too sharp or acidic: The vinegar is dominating. Whisk in a few more drops of olive oil, or a small pinch of salt, which softens perceived acidity without adding sweetness.
- Tastes flat despite correct proportions: The salt went in too early and got lost. Add a fresh pinch at the very end and whisk again โ seasoning after emulsifying makes a noticeable difference.
- Greens are wilting fast after dressing: Dress it at the table โ a pre-dressed salad goes limp fast, especially with delicate lettuces. Keep the dressing in a jar and pour just before serving.
- Dressing is too thick to pour evenly: Cold olive oil thickens considerably. If you refrigerated it, let it sit at room temperature for ten minutes and whisk again before using.
Shopping notes
- Olive oil vs. avocado oil: Both work. Avocado oil has a more neutral flavor, which lets the mustard and vinegar come through more clearly. Extra-virgin olive oil adds a slightly peppery note that works well with bitter greens.
- Apple cider vinegar: Use unfiltered if you have it โ the flavor is rounder. Filtered works fine. Donโt substitute white distilled vinegar; itโs too sharp here.
- Honey: The recipe specifies uncooked (raw) honey. Any raw honey works. If youโre strict keto, note that this adds roughly 18g of sugar across the full batch โ scale the honey down to a teaspoon if you want to cut that significantly without losing all the sweetness.
Leftovers and meal prep
This dressing keeps well in a sealed jar in the refrigerator for up to two weeks. Because it contains no dairy or fresh garlic, it doesnโt degrade quickly. It will separate and the olive oil will solidify slightly when cold โ thatโs normal. Pull it out ten to fifteen minutes before you need it, shake or whisk it back together, and itโs ready. If youโre building a salad that needs to hold for lunch the next day, keep the dressing separate and store any crisp toppings โ nuts, seeds, croutons โ in a small bag on the side. Dress the greens only when youโre ready to eat. A fully assembled but undressed salad stays good in the fridge for about a day before the greens start to soften.
Keto French Dressing
Equipment
- Small mixing bowl
- Whisk
- Mason jar with tight-fitting lid (16 oz / 500ml)
- Measuring cups and spoons
Ingredients
- ยฝ cup extra virgin olive oil 120ml, or use avocado oil
- ยผ cup apple cider vinegar 60ml
- 1 tablespoon Dijon mustard 15g
- 1 tablespoon raw honey 21g
- ยผ teaspoon fine sea salt or to taste
- ยผ teaspoon freshly ground black pepper or to taste
Instructions
- Combine olive oil, apple cider vinegar, Dijon mustard, honey, salt, and pepper in a small bowl. Whisk vigorously for 30โ60 seconds until the dressing is smooth, creamy, and fully emulsified with no visible oil separation.1/2 cup extra virgin olive oil, 1/4 cup apple cider vinegar, 1 tablespoon Dijon mustard, 1 tablespoon raw honey, 1/4 teaspoon fine sea salt, 1/4 teaspoon freshly ground black pepper
- Transfer the dressing to a jar or serving container. Drizzle 2 tablespoons over your prepared salad and toss to coat evenly. Store any remaining dressing in a sealed jar in the refrigerator.
Notes
Nutrition
Frequently asked questions
Is this dressing actually keto-friendly given the honey?
It depends on your daily carb limit and how much dressing you use. The full batch contains about 19g of carbohydrates, almost all from the tablespoon of honey โ but a single serving is typically two to three tablespoons, which brings the carbs down to roughly 3-5g per serving. If youโre tracking strictly, reduce the honey to one teaspoon or skip it and add a small pinch of a keto-approved sweetener instead.
Can I use a blender or food processor instead of whisking?
Yes, and it actually produces a more stable emulsion. A small immersion blender or even a jar with a tight lid that you shake vigorously will work. The shaking method is the fastest cleanup.
What salads does this dressing work best on?
It works on any sturdy green โ romaine, arugula, spinach, or a simple mixed green. Because itโs a vinaigrette rather than a creamy dressing, it coats lighter leaves well without weighing them down. Add protein like grilled chicken, hard-boiled eggs, or canned tuna to turn it into a full meal.
Why does my dressing separate so quickly?
Vinaigrettes are temporary emulsions โ they will always separate eventually without a stabilizer like lecithin. The Dijon mustard slows this down but doesnโt stop it permanently. Whisk or shake right before pouring, and donโt make it more than a day ahead if you want it to stay cohesive.
Can I substitute another vinegar if I donโt have apple cider vinegar?
Red wine vinegar is the closest substitute โ it has a similar mild acidity and works well in French-style dressings. White wine vinegar is slightly sharper but still fine. Avoid balsamic here; itโs too sweet and thick and will change the character of the dressing entirely.
The nutrition label shows 1,041 calories โ is that for the whole batch?
Yes, that calorie count is for the entire recipe as written, which is listed as one serving but realistically makes enough dressing for three to four salads. A two-tablespoon serving comes out to roughly 130-170 calories, nearly all from the olive or avocado oil.