Technique · Emulsify Vinaigrette By a working chef

How to Make a Lemon Vinaigrette That Doesn't Break

How to emulsify a vinaigrette lemon — a working chef's step-by-step. A bright, stable lemon vinaigrette that coats greens without separating in 30 seconds, every time.

The goal

A bright, stable lemon vinaigrette that coats greens without separating in 30 seconds. This is the technique-meets-ingredient breakdown — the move a working chef makes when lemon is what's on the bench.

What you need

Fresh lemons (juice and zest)
Dijon mustard
Honey or maple syrup
Good extra-virgin olive oil
Salt and pepper
Optional: shallot, garlic

Tools

Small bowl and whisk, or a jar with a tight lid

Step-by-step

Start with the acid and Dijon.
Whisk together 2 tablespoons fresh lemon juice, 1 teaspoon Dijon mustard, and a pinch of zest. Dijon is the emulsifier — it lets the oil and acid stay together.
Add honey or maple to balance.
A teaspoon of honey or maple syrup balances lemon's sharpness. Without it, the dressing reads aggressive. Whisk to dissolve.
Add finely minced shallot or garlic (optional).
If you have either, a teaspoon of minced shallot or half a clove of microplaned garlic adds depth. Let sit for a minute to mellow.
Stream in the olive oil while whisking.
Three parts oil to one part acid — so about 6 tablespoons of olive oil for 2 tablespoons of juice. Pour in a thin stream while whisking constantly. The dressing should thicken and turn pale, almost creamy.
Or shake in a jar.
If whisking feels fussy, combine everything in a jar with a tight lid and shake hard for 15 seconds. The jar method emulsifies almost as well as whisking and you can store leftovers in the same vessel.
Season to taste and dress just before serving.
Salt, pepper, taste. If too sharp, more honey. If too sweet, more lemon. Dress greens right before serving — dressed greens wilt fast.

The connection: This builds on emulsify vinaigrette — once you have that down, lemon becomes a 10-minute job. Read the main emulsify vinaigrette guide for the underlying technique.

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Frequently asked questions

Why does my vinaigrette always break?

You probably skipped the Dijon or didn't whisk hard enough. Dijon contains natural emulsifiers (like lecithin) that hold the oil and acid together. Without them, oil and water always separate.

What's the right oil-to-acid ratio?

Classic is 3:1 — three parts oil, one part acid. Lemon is sharper than vinegar, so you can stretch to 4:1 (4 parts oil to 1 part lemon juice) if it tastes too aggressive.

Can I use bottled lemon juice?

It works in a pinch but the flavor is dull compared to fresh. Always fresh-squeeze if you have the lemon.

Does NowCook help with vinaigrettes?

Yes — NowCook builds dressings around what you have on hand, scaled for the amount of salad you're dressing. 14-day free trial.