Finally Make Silky, Low-Fuss Vinaigrette That Won't Separate (2024)

Yes, everybody makes basic cooking mistakes. Like, say, something as simple as overcooking mushrooms or toasting grains and spices. Below, reader Carol confesses her dressing woes to associate food editor Rick Martinez. Here’s Martinez's advice for making sure it never happens again. Welcome to Effed it Up.

Dear Rick,

Last time I made vinaigrette, it wouldn't emulsify for love nor money. I suspect the binding agent I used—an onion, mustard, and garlic spice blend from La Boîte à Epices—was too coarse. My vinegar to oil ratio was one to two. I even tried whisking, mixing, and industrial mixing, but that sucker just wouldn't emulsify. Bah! What went wrong here? Was there anything else I could've done?

Thanks,
Carol

Dear Carol,

I hope you skipped the gym that day. It sounds like you got quite a whisking workout from that broken vin.

But it also sounds to me like you didn't have enough surfactant in that vinaigrette. Sur...what? Allow me to explain: As you no doubt know, oil and water do not mix, and will eventually separate even after industrial mixing. A surfactant is the scientific name for an emulsifier, a.k.a. something that attracts both water and oil molecules and binds them together. These emulsifiers allow for the creation of a vinaigrette that is creamy and won't separate—truly a beautiful thing. But, in order for the vinaigrette, to "stay together," you have to have the right amount of an emulsifier.

Canal House Classic Vinaigrette. Photo: Hirsheimer & Hamilton

Hirsheimer & Hamilton

If you were to dress a salad with straight up oil and vinegar, the oil would cling to and coat the greens, while the vinegar would slide right off and puddle up in the bottom of the bowl. Each bite would be oily and flavorless...until the end when you would essentially have...pickled lettuce. The emulsion keeps the two together so that every bite of lettuce has the perfect amount of richness from the oil and kick from the acid.

The most common emulsifiers in your kitchen are likely egg yolks, mayonnaise, prepared mustard (preferably Dijon), honey, and tomato paste (though I'm not a fan of raw tomato paste, the flavor works quite well in a vinaigrette). For a more neutral flavor, use mayonnaise. I don't use yolks in my vinaigrettes (no, not because of the raw egg), because they will cause the vinaigrette to foam up; the residual bubbles will pretty much stay there, even after you dress your salad. Honey is doable, and it helps balance out acidity, but it's best application is as an additive to another primary emulsifier, such as Dijon. Think of it as more insurance against breaking.

Rick geeks out about surfactants—and now you do too. Photo: Rick Martinez

Rick Martinez

Finally Make Silky, Low-Fuss Vinaigrette That Won't Separate (2024)

FAQs

Finally Make Silky, Low-Fuss Vinaigrette That Won't Separate? ›

Make Sure to Mix Well

But you still need to shake the vinaigrette in a jar to help create the emulsion. Just combine the vinegar, molasses, mustard, and mayonnaise (and salt) together in a jar with a fork and then add the oils in batches, shaking after each addition.

How to make a vinaigrette that doesn't separate? ›

Make Sure to Mix Well

But you still need to shake the vinaigrette in a jar to help create the emulsion. Just combine the vinegar, molasses, mustard, and mayonnaise (and salt) together in a jar with a fork and then add the oils in batches, shaking after each addition.

How to stop vinaigrette separating? ›

The best way to achieve a fully emulsified vinaigrette is to use a food processor. With the machine running, drop in a garlic clove along with a small, peeled shallot or slice of onion.

Why do some salad dressings not separate while others do? ›

Commercial salad dressings are usually made with a lot of additives and emulsifying agents that keep the vinaigrette from separating. Some of them are natural, like lecithin (found in egg yolks). Others are, shall we say, not quite so natural.

What to do when salad dressing separates? ›

You can do this by placing a teaspoon of lemon juice (or water) in a clean bowl and adding a small amount of the broken emulsion, whisking to form another, stable emulsion. Once that emulsion forms, drizzle in the rest of the broken sauce, whisking constantly.

What are two ingredients that can be used to help emulsify a vinaigrette? ›

The most common emulsifiers in your kitchen are likely egg yolks, mayonnaise, prepared mustard (preferably Dijon), honey, and tomato paste (though I'm not a fan of raw tomato paste, the flavor works quite well in a vinaigrette). For a more neutral flavor, use mayonnaise.

What are some common mistakes to avoid when making vinaigrette? ›

12 Mistakes Everyone Makes When Making Homemade Vinaigrette
  • Estimating measurements for all ingredients. inspiredbyart/Shutterstock. ...
  • Using the wrong oil. ...
  • Using the wrong vinegar. ...
  • Leaving out the emulsifier. ...
  • Skipping the mustard. ...
  • Forgetting to check expiration dates. ...
  • Not using fresh herbs. ...
  • Using vinaigrette only on salad.
Aug 18, 2022

Do you pour olive oil or vinegar first? ›

If we prepare the three most popular ingredients used to season a salad we have: oil, vinegar and salt. And interestingly, that is the order most commonly used at the time of preparing this dish. However, this is erroneous. The correct order for dressing a salad is first the salt, then the vinegar and finally the oil.

What is used to emulsify a standard vinaigrette? ›

Emulsifiers mix easily with both oil and water and act as the glue that keeps your vinaigrette from separating. Common ingredients used as emulsifiers in vinaigrettes include Dijon mustard, honey, egg yolks, tomato paste or even roasted garlic (some are better emulsifiers than others).

How to emulsify olive oil and balsamic vinegar? ›

Emulsifying will allow you to evenly disperse a vinaigrette flavor over salads and fruit. Slowly add olive oil to a balsamic while whisking vigorously, which disperses and suspends minute droplets of one liquid throughout the other to make a thick, satiny liquid.

How to fix a split vinaigrette? ›

One effective method to fix this is to whisk in a small amount of neutral oil (such as vegetable or grapeseed oil) slowly, allowing the mixture to emulsify again. Keep adding oil until the balance between acid and fat is restored, and the emulsion is stable.

How do you choose the right oil for a vinaigrette? ›

The Oils. Generally speaking, any oils labeled "vegetable oil" or "salad oil" are fine for making a basic vinaigrette. You could also use any light, neutral-flavored oil like safflower, canola, or soybean oil. One of the most common variations is to substitute olive oil for salad oil.

How do you stabilize a vinaigrette? ›

In many vinaigrettes, mustard is the go-to stabilizer. Since most households have a jar of mustard handy, this is a pretty easy pantry add-in. You should follow a basic ratio of one part acid to three parts oil, plus the emulsifier.

Why does salad dressing separate into layers? ›

The water and oil molecules have distinct chemical properties that don't interact well together. You may have seen this if you've attempted to make a salad dressing by shaking together oil and vinegar (which is mostly water), which gives a temporary suspension that quickly separates.

How to keep oil from separating? ›

To prevent the mixture from separating substances called emulsifiers can be added. These help to form and stabilise the emulsions, preventing or slowing the water and fat/oil from separating. How do emulsifiers work?

Top Articles
Latest Posts
Article information

Author: Twana Towne Ret

Last Updated:

Views: 5542

Rating: 4.3 / 5 (44 voted)

Reviews: 83% of readers found this page helpful

Author information

Name: Twana Towne Ret

Birthday: 1994-03-19

Address: Apt. 990 97439 Corwin Motorway, Port Eliseoburgh, NM 99144-2618

Phone: +5958753152963

Job: National Specialist

Hobby: Kayaking, Photography, Skydiving, Embroidery, Leather crafting, Orienteering, Cooking

Introduction: My name is Twana Towne Ret, I am a famous, talented, joyous, perfect, powerful, inquisitive, lovely person who loves writing and wants to share my knowledge and understanding with you.