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How to Make Mayonnaise

Learn how to make mayonnaise with egg, oil, acid, mustard, safe handling notes, emulsion steps, common mistakes, troubleshooting, and FAQs.

Food & CookingEdited by Pramod Tiwari
2 min read

Quick Answer

To make mayonnaise, whisk egg yolk or use a pasteurized egg product with mustard and lemon juice or vinegar, then add neutral oil very slowly while whisking until thick and creamy. Refrigerate immediately and use safe egg-handling practices.

Ingredients and Tools

  • Egg yolk or pasteurized egg product
  • Neutral oil
  • Lemon juice or vinegar
  • Mustard
  • Salt
  • Whisk or immersion blender
  • Clean jar

Safety Precautions

  • Use pasteurized eggs if serving children, pregnant people, older adults, or anyone immunocompromised.
  • Keep mayonnaise refrigerated.
  • Use clean utensils and do not double-dip.
  • Discard if it smells off or separates after storage.
  • Do not leave homemade mayonnaise at room temperature for long periods.

Step-by-Step Instructions

  1. Step 1

    Start with clean tools

    Wash the bowl, whisk, blender, and jar before mixing.

  2. Step 2

    Mix egg and acid

    Combine egg yolk, lemon juice or vinegar, mustard, and salt.

  3. Step 3

    Add oil slowly

    Drizzle oil in a few drops at a time while whisking constantly.

  4. Step 4

    Build the emulsion

    Once thickening starts, add oil in a thin steady stream.

  5. Step 5

    Adjust texture

    Whisk in a few drops of water if the mayonnaise becomes too thick.

  6. Step 6

    Taste and season

    Add more salt or acid if needed.

  7. Step 7

    Refrigerate

    Transfer to a clean covered jar and chill immediately.

Practical Example

Example: You whisk yolk, mustard, vinegar, and salt, slowly drizzle in oil until thick, then refrigerate the mayonnaise for sandwiches.

Common Mistakes

  • Adding oil too fast
  • Using cold ingredients straight from the fridge
  • Skipping acid
  • Using strong-flavored oil accidentally
  • Leaving it unrefrigerated
  • Serving raw egg mayo to high-risk guests

Troubleshooting

Mayonnaise broke

Start with a fresh yolk or spoon of mustard and slowly whisk the broken mixture into it.

Mayonnaise is too thick

Whisk in a few drops of water or lemon juice.

Flavor is oily

Use a more neutral oil next time and add a little acid or salt.

It tastes too sharp

Whisk in a small amount more oil to soften the acidity.

FAQs

Is homemade mayonnaise safe?

Use clean tools, refrigerate promptly, and consider pasteurized eggs for higher-risk people.

Why did my mayonnaise split?

The oil was likely added too fast or the emulsion was not stable yet.

Can I use olive oil?

Yes, but strong olive oil can taste bitter or overpowering.

Do I need mustard?

Mustard helps flavor and emulsion stability, but some recipes use little or none.

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