Lemon vinaigrette is a sharp, bright dressing made from lemon juice, olive oil, Dijon mustard, thyme, salt, and pepper โ ready in five minutes with nothing but a jar and a shake. It keeps well in the fridge, so one batch covers several meals. If you want a dressing that works across greens, grains, and proteins without overwhelming any of them, this is a reliable one to keep on hand.
Before you start
The one technique that determines whether this dressing clings or just pools at the bottom of the bowl is emulsification. Dijon mustard is doing that job here โ it acts as a binder between the lemon juice and olive oil. For it to work, the mustard needs to be fully incorporated before the oil goes in, or the dressing will split immediately. Shake the jar hard for a full 20โ30 seconds, not just a quick swirl. Also, use freshly squeezed lemon juice rather than bottled; the flavor difference is significant, and bottled juice can taste flat or faintly metallic against good olive oil.
Ingredient notes
- Olive oil: Use extra-virgin. A neutral oil like canola will produce a thinner, blander dressing โ the fat here carries most of the flavor.
- Dijon mustard: Whole-grain mustard works as a swap and adds a mild texture, but it will make the dressing slightly thicker. Yellow mustard changes the flavor noticeably and isnโt recommended.
- Thyme: Dried thyme is fine and is what the recipe calls for. Fresh thyme works too โ use about 1 teaspoon of fresh leaves in place of the dried, and note that fresh herbs shorten the fridge life of the dressing.
Troubleshooting
- Dressing tastes flat: Add a small pinch more salt and shake again. Salt amplifies the lemon and rounds out the bitterness of the olive oil โ under-salting is the most common reason a vinaigrette tastes dull.
- Too sharp or too acidic: Add a half teaspoon of honey and shake. It balances the lemon without making the dressing sweet, and it also helps the emulsion hold.
- Oil and lemon juice have separated in the jar: This is normal after sitting. Shake vigorously for 15 seconds before each use โ it will re-emulsify quickly because the mustard is still active.
- Dressing slides off the greens: Dry your salad leaves thoroughly before dressing. Water on the leaves repels oil-based dressings and prevents them from coating properly. A salad spinner or a clean kitchen towel works well.
- Dressing tastes bitter: This usually means the olive oil is old or low quality. Check the harvest date on the bottle โ olive oil past 18 months from harvest often turns bitter, especially under heat or light.
Make-ahead notes
This dressing stores well in a sealed jar in the fridge for up to one week. The olive oil will solidify slightly when cold โ thatโs normal. Pull the jar out 10 minutes before you need it and shake well, or run it briefly under warm water. Dress it at the table โ a pre-dressed salad goes limp fast, especially with tender greens like spinach or butter lettuce. If youโre meal-prepping salads with heartier components like grains, roasted vegetables, or chickpeas, those can be dressed an hour or two ahead without much loss of texture. Keep the dressing separate from any fresh greens until the moment you serve.
Lemon Vinaigrette
Equipment
- Mason jar with tight-fitting lid (8 oz / 250ml)
- Citrus juicer or reamer
- Measuring spoons
Ingredients
- 2 tablespoons fresh lemon juice 30ml, about 1 medium lemon
- 3 tablespoons extra-virgin olive oil 45ml
- 1 teaspoon Dijon mustard
- 1 teaspoon fresh thyme leaves finely chopped, or ยผ teaspoon dried thyme
- ยผ teaspoon fine sea salt or to taste
- โ teaspoon freshly ground black pepper or to taste
Instructions
- Add the lemon juice and Dijon mustard to a clean jar. Seal the lid tightly and shake for 5 seconds until the mustard is fully dissolved into the juice.2 tablespoons fresh lemon juice, 1 teaspoon Dijon mustard
- Add the olive oil, thyme, salt, and pepper to the jar. Seal tightly and shake vigorously for 20โ30 seconds until the dressing is fully emulsified and slightly thickened. Taste and adjust salt and acidity as needed.3 tablespoons extra-virgin olive oil, 1 teaspoon fresh thyme leaves, 1/4 teaspoon fine sea salt, 1/8 teaspoon freshly ground black pepper
Notes
Nutrition
Frequently asked questions
Can I use lime juice instead of lemon juice?
Yes, lime juice works as a direct substitute in the same quantity. The flavor will be slightly more tropical and a little less sharp, which pairs well with salads that include avocado, corn, or black beans.
What salads does this dressing work best on?
It works well on anything that benefits from acidity โ green salads, grain bowls with quinoa or farro, chickpea salads, and salads with grilled chicken or white fish. Itโs light enough not to overpower delicate ingredients, and the thyme gives it enough character to stand up to heartier ones.
How much dressing does this recipe make, and is it enough for more than one person?
The recipe makes one serving as written, roughly 5 tablespoons of dressing. For a larger salad or multiple servings, use the 2x or 3x scaling on the recipe card โ the ratios hold up well when multiplied.
Can I add garlic to this vinaigrette?
Yes โ half a small clove, finely grated or minced, adds depth without taking over. Add it before shaking so it distributes evenly, and note that garlic will shorten the fridge life to about three days.