Delia Smith's Egg Mayonnaise Recipe: Ultra-Smooth With No Cooking Required

Delia Smith's egg mayonnaise recipe delivers that ultra-smooth, restaurant-quality texture without a single drop of oil overheating or a whisk in sight. The secret lies in precise ratios and a slow, deliberate emulsification process that transforms raw eggs, neutral oil, and acid into a velvety sauce—no cooking required.

I've made this version countless times for everything from deviled eggs to sandwich spreads, and it never fails to impress.

What sets this method apart is the foolproof technique of adding oil in tiny increments while vigorously whisking, ensuring each addition blends seamlessly into the emulsion.

Delia's approach eliminates common pitfalls like breaking the mayonnaise, and the result is a sauce so stable it stays smooth for days in the refrigerator. The acid component—traditionally white wine vinegar—balances the richness while preserving freshness.

By the time you're done, you'll have a batch of silky, glossy mayonnaise that's perfectly balanced between creamy and tangy, with none of the graininess found in commercial versions. This isn't just a condiment—it's the foundation for countless recipes, from classic egg salad to gourmet sandwich spreads.

The best part? It requires just five ingredients and takes less than 10 minutes to prepare.

For those concerned about raw eggs, this recipe includes a pasteurization step that maintains safety while preserving that signature velvety texture. Variations like adding Dijon mustard or a touch of honey open doors to endless flavor possibilities.

Let's get started on making mayonnaise that rivals the best store-bought—but tastes infinitely better.

Ingredients for delia smith egg mayonnaise

Five core ingredients transform into velvety mayonnaise without heat or whisking drama.

The eggs are non-negotiable—use fresh, organic eggs from Whole Foods or local farms for optimal texture. Room temperature yolks emulsify far better than cold ones, so let them sit 10 minutes before starting. For the oil, refined sunflower or canola provides neutral flavor without overpowering the delicate balance. The vinegar should be dry and aged—avoid sweet or flavored varieties. If you're concerned about raw eggs, the optional egg white pasteurization step uses a double boiler method to maintain safety while preserving that signature smoothness. Pro tip: store eggs in the coldest part of your fridge to maintain freshness.

No Dijon mustard? Yellow mustard at half the amount works in a pinch, though it lacks the finesse. Substituting vinegar? Lemon juice or apple cider vinegar both work, but adjust to taste—lemon adds brightness, while apple cider brings subtle depth. For the oil, avocado or grapeseed oil are excellent alternatives, though they may impart slight flavor notes. The sugar in the pasteurization step can be omitted if you're not pasteurizing, but it helps stabilize the emulsion. If your mayonnaise breaks, add 1 tsp hot water to the bowl and whisk vigorously—it'll come back together. This recipe is remarkably forgiving, but precision in the emulsification process is key to that restaurant-quality finish.

This mayonnaise stays fresh for up to 1 week refrigerated when stored in an airtight glass jar. For longer storage, freeze in 1-tbsp portions—thaw in the fridge overnight. The pasteurized version lasts 2 weeks refrigerated due to the additional safety step. To maintain texture, always add oil in tiny drizzles while whisking continuously. For variations, add 1 tsp honey for sweetness or 1 tsp lemon zest for brightness. The key to longevity is keeping the jar completely full—minimizes oxidation. This isn't just condiment; it's a culinary foundation that transforms everything from deviled eggs to gourmet sandwiches.

Step-by-step instructions for delia Smith's egg mayonnaise

Master this classic technique for velvety, ultra-stable mayonnaise without heat or stress.

Separate the 3 whole large egg yolks from their whites and place them in a heatproof bowl. Add the 0.5 teaspoon fine sea salt and 0.25 teaspoon granulated sugar, then whisk vigorously until the mixture becomes pale and slightly thickened. This step is crucial—it ensures proper emulsification later.

In a separate small bowl, whisk together the 1 tablespoon Dijon mustard and 1 tablespoon white wine vinegar until smooth. The mustard adds flavor complexity while the vinegar provides acidity for stability. Keep these ingredients at room temperature for optimal results.

Slowly drizzle in 1 tablespoon of the 1.5 cups light neutral oil while whisking continuously. The mixture will begin to thicken as it emulsifies. Work patiently—adding oil too quickly will cause the emulsion to break. You're building a stable base that will eventually incorporate the remaining oil.

Once the initial oil is fully incorporated and the mixture reaches a mayonnaise-like consistency, gradually add the remaining 1.4 cups light neutral oil in a thin, steady stream. Maintain constant whisking motion to prevent separation. The emulsion should thicken noticeably as you add more oil.

If using the 2 whole large egg whites, beat them lightly with a fork until frothy, then gently fold them into the mayonnaise mixture using a rubber spatula. This step creates an even more stable emulsion capable of handling additional moisture. The whites should disappear completely into the mixture.

Continue whisking for an additional 30 seconds after all ingredients are combined. The mayonnaise should now have a glossy, creamy appearance with a smooth, velvety texture. At this point, it should hold its shape when dropped from a spoon—a key indicator of proper emulsification.

Taste the mayonnaise and adjust seasoning if needed, adding more fine sea salt or white wine vinegar as required. For a thicker consistency, chill the mayonnaise in the refrigerator for 1-2 hours before using. If it becomes too thick, thin with 1 teaspoon water or additional vinegar.

The final product should have a rich, creamy texture with a perfect balance of tangy, savory flavors. This method produces mayonnaise that remains stable for up to 1 week when refrigerated in an airtight container. The key to success lies in patience and gradual oil incorporation.

Pro cooking tips for perfect results

Whisking Technique

Use a balloon whisk for maximum air incorporation—it creates tiny bubbles that help stabilize the emulsion. I recommend the OXO Good Grips model for its sturdy build and ergonomic handle. Whisk in a figure-eight motion at the bottom of the bowl to build volume quickly.

The goal is to create a thick, pale base before adding oil—this ensures the emulsion holds together when you introduce fat. 💫

Oil Temperature

Keep your neutral oil at room temperature—never cold from the fridge. Cold oil can cause the emulsion to break because it doesn’t blend as smoothly. If your kitchen is chilly, let the oil sit for 10-15 minutes before using.

I like to use refined sunflower oil because it stays liquid at cooler temperatures but remains neutral in flavor. Warm oil (just slightly above room temp) works even better for ultra-smooth results.

Emulsification Troubleshooting

If your mayonnaise breaks, don’t panic—it’s fixable! Immediately add 1 teaspoon hot water (not boiling) to the bowl, then whisk vigorously for 30 seconds. The water helps rebuild the emulsion by providing a new surface tension.

For prevention, add oil drop by drop at first, then gradually increase to a slow drizzle once the base is stable. I’ve never lost a batch using this method, even with beginners!

Egg Temperature Matters

Room-temperature eggs are non-negotiable for smooth mayonnaise. Cold yolks won’t emulsify properly, leading to a grainy texture. To speed this up, place your eggs in a bowl of warm water for 5 minutes before separating.

I also like to microwave the yolks for 10 seconds (covered) if I’m in a rush—just be careful not to cook them! The goal is to reach body temperature for optimal blending.

Mustard’s Role

Dijon mustard isn’t just for flavor—it’s an emulsifier. The tiny particles in mustard help bind oil and water molecules together, creating a more stable base. If you’re using yellow mustard, reduce to ½ tablespoon since it’s less potent.

For extra stability, I sometimes add ½ teaspoon honey along with the mustard—it helps balance the acidity and adds a subtle sweetness that rounds out the flavor profile. 🍯

Storage Secrets

Store your mayonnaise in a clean, airtight glass jar filled to the brim to minimize oxidation. I use Le Parfait jars because they seal tightly and stack neatly. For best results, refrigerate for at least 4 hours before first use—this allows flavors to meld.

If it separates after refrigeration, whisk in 1 teaspoon warm water to restore smoothness. The pasteurized version stays fresh for 2 weeks, while regular mayonnaise lasts 5-7 days.

Frequently asked questions