Salad Dressing Techniques & Know-How

The Emulsification Spectrum

Emulsification is the suspension of one liquid in another — oil droplets in water, or water droplets in oil. In dressings, this determines texture, stability, and how the dressing clings to ingredients.

Temporary emulsion — shaken or whisked without an emulsifier. Breaks within minutes. Example: a simple French vinaigrette whisked at the last minute. Jacques Pépin prefers this: “glossy oiled lettuce with flavour pockets.”

Stable emulsion — requires an emulsifier. Mustard (lecithin), egg yolk (lecithin), miso (lecithin), or avocado (monounsaturated fat + water) all act as bridges between oil and water. Example: Caesar dressing, tahini dressing, Green Goddess.

Permanent emulsion — when fat is physically broken into microscopic droplets and coated with emulsifier. Example: mayonnaise. The two-oil Caesar method (Kenji) exploits this: neutral oil for emulsification, olive oil added by hand for flavour without bitterness.

Fat-to-Acid Ratios by Tradition

Tradition	Typical ratio	Notes
French classic	3:1 oil:vinegar	Larousse; many cooks prefer 2:1 for sharper
Japanese wafu	~1:1	Soy + rice vinegar balance
Mexican/Latin	1:1 to 1:2	Bold acidity is intentional
Modern	Varies wildly	Fat is a flavour vehicle, not just carrier
Tahini-based	No oil needed	Tahini is already ~50% fat

Key Principles by Tradition

French

1. Quality over technique. Good Dijon (Maille, Fallot), proper wine vinegars, and excellent olive oil are non-negotiable.
2. Shallot maceration is essential. Rest minced shallots in vinegar and salt for 10 minutes.
3. Mustard is an emulsifier, not just a flavouring.
4. Dress the salad, not the bowl. Just enough to coat — French salads are never swimming.

Japanese

1. Layer umami. Soy + dashi + miso each contribute different dimensions of savoury depth.
2. Nikiri mirin. Always burn off mirin’s alcohol before using in cold applications.
3. Toasting sesame matters. Toast until 2–3 seeds pop — this is the moment.
4. Shio koji is a secret weapon. Adds enzymatic depth and mild sweetness.

Mexican/Latin

1. Embrace bold acidity. Latin dressings use 1:1 or even 1:2 oil-to-acid ratios — don’t be timid.
2. Lime juice over lemon. Mexican key limes are more aromatic; regular limes still far preferable.
3. Season generously. As Bayless says: “Dressings should be highly seasoned.”
4. Choose your chile intentionally. Chipotle for smoke, serrano for heat, guajillo for fruitiness.

Modern/Contemporary

1. Fermentation creates unreplicable complexity. Lactic acid has more depth than any vinegar.
2. Fat is not just a carrier — it is a flavour. Brown butter, walnut oil, kombu oil, XO — fat is where character lives.
3. Cross-cultural borrowing is a virtue. The best modern dressings are promiscuous: miso-butter, XO-Caesar, kombucha vinaigrette.
4. Simplicity at the highest level is the hardest. Alice Waters and Alain Passard have less in their dressings, not more.

Seasoning & Balance

Salt timing: Add salt to the acid component first (vinegar or citrus), before adding oil. Salt dissolves in water, not oil — this ensures even seasoning.

Acid types and their character:

• Red wine vinegar — bold, tannic, classic French
• Sherry vinegar — nutty, complex, Spanish
• Champagne / white wine vinegar — delicate, clean
• Rice vinegar — mild, slightly sweet, Asian applications
• Lemon juice — bright, volatile; use fresh, add at the end
• Lime juice — more aromatic than lemon for Mexican/Asian
• Citrus + vinegar — combining both adds complexity (ponzu principle)
• Lactic acid (fermented) — alive, complex, irreplaceable depth

Sweetness balance: A small amount of sweetness (honey, mirin, maple syrup) rounds harsh acidity without making a dressing “sweet.” Start with 5 g and adjust.

Umami boosters: Anchovy (Classic French/Caesar), soy sauce, miso, dashi, shio koji, XO sauce, Worcestershire — all amplify savoriness without tasting of their individual ingredients.

Fermentation Techniques

Used in Noma-Lemon-Verbena-Kombucha-Vinaigrette, Noma-Dashi-Vinaigrette, Noma-Lacto-Fermented-Fruit-Vinaigrette, Noma-Lacto-Fermented-Hot-Sauce-Vinaigrette:

Lacto-fermentation rule: Always use at least 2% salt by weight of the vegetables/fruit. Below 2% risks unsafe fermentation. Above 5% inhibits fermentation and just brines.

Temperature: 20–24°C is the sweet spot for most lacto-ferments. Higher temperature = faster ferment = less complex flavour. Lower = slower = more nuanced.

pH target: Below 4.6 for food safety. Fermented product should taste pleasantly sour, not harshly acidic.

Storage

Dressing type	Refrigerator life	Notes
Simple vinaigrette (no egg)	2 weeks	Shake before use
Emulsified (with egg yolk)	3–5 days	Smell before using
Cream-based	3–5 days
Herb-based (Sauce Verte, Green Goddess)	3–5 days	Colour fades
Miso-based	1 month	Miso acts as preservative
Fermentation-based	2–4 weeks	Flavour deepens over time
Gribiche / Ravigote	1 day	Best fresh
Avocado (Crema, Green Goddess)	2 days	Press plastic wrap on surface
XO sauce base	Weeks	Oil-preserved
Salsa Macha	Weeks	Oil-preserved

Ingredient Glossary

Japanese: Koikuchi shoyu — standard dark soy sauce (Kikkoman, Yamasa) · Usukuchi shoyu — light/saltier soy · Kewpie — egg-yolk-only Japanese mayo with rice vinegar · Hon-mirin — real sweet rice wine (not mirin-fu imitation) · Katsuobushi — dried bonito flakes · Kombu — dried kelp (natural glutamate source) · Nerigoma — Japanese sesame paste (more earthy than tahini) · Shio koji — salt-fermented rice koji · Gochugaru — Korean red pepper flakes (smoky, moderately hot) · Gochujang — Korean fermented red pepper paste (sweet, spicy, umami) · Nam pla — Thai fish sauce · Palm sugar — unrefined sugar from palm sap, deep caramel flavour

French: Huile de noix — walnut oil (store refrigerated, use within 3 months) · Huile de noisette — hazelnut oil (more delicate than walnut) · Crème fraîche — cultured cream, 30–40% fat, more stable than sour cream

Modern: Tapioca maltodextrin (N-Zorbit M) — absorbs its own weight in fat to create dry powder · Aji amarillo — Peruvian yellow chile paste (fruity, medium heat) · Pomegranate molasses — reduced pomegranate juice, varies wildly between brands · XO sauce — Hong Kong dried-seafood luxury condiment

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Salad-Dressings