Easy Keto Homemade Mayonnaise Recipe
Introduction
This easy keto homemade mayonnaise is creamy, tangy, and perfect for low-carb meals. Made with simple ingredients and an immersion blender, it comes together quickly and tastes fresher than store-bought versions.

Ingredients
- 1 large egg
- 1 cup extra light olive oil (or use avocado oil)
- 1 tbsp Dijon mustard
- 3 tbsp lemon juice (about half a lemon)
- Salt, a generous pinch
- Tall and narrow glass jar, for making and storing the mayo
- Immersion blender
Instructions
- Step 1: Add the extra light olive oil to the glass jar. Then add the whole egg, Dijon mustard, lemon juice, and salt on top.
- Step 2: Place the immersion blender at the bottom of the jar and blend for 10–15 seconds without moving it. Once the mixture emulsifies and thickens, slowly move the blender up and down to incorporate all ingredients fully.
- Step 3: Remove the blender, stir the mayonnaise a few times with a spoon, seal the jar with a lid, and refrigerate. The mayo will keep fresh for up to one week.
Tips & Variations
- Use avocado oil for a milder flavor and extra healthy fats.
- Adjust lemon juice to taste for more tanginess.
- Try adding a small garlic clove or herbs like dill for a flavored mayo.
- Make sure to use a tall, narrow jar to get the best blending results with the immersion blender.
Storage
Store the homemade mayonnaise in a sealed glass jar in the refrigerator. It will stay fresh for up to one week. Stir well before each use if separation occurs. Do not freeze, as the texture may break down.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use pasteurized eggs for this recipe?
Yes, pasteurized eggs are safe to use and recommended for recipes using raw eggs, especially if you are concerned about food safety.
What can I do if my mayonnaise doesn’t thicken?
If the mayonnaise doesn’t thicken, try blending longer while keeping the blender at the bottom initially. Make sure the oil is slowly emulsified with the egg and mustard. Also, using a fresh egg at room temperature helps the emulsion form properly.
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Easy Keto Homemade Mayonnaise Recipe
- Total Time: 5 minutes
- Yield: About 1 cup of mayonnaise 1x
- Diet: Keto
Description
This Easy Keto Homemade Mayonnaise is a creamy, rich, and tangy condiment made from simple ingredients using just an immersion blender. Perfect for keto and low-carb diets, this mayo offers a fresh alternative to store-bought versions, with customizable flavors and healthy fats from olive or avocado oil.
Ingredients
Mayonnaise Ingredients
- 1 large egg
- 1 cup extra light olive oil (or substitute with avocado oil)
- 1 tbsp Dijon mustard
- 3 tbsp lemon juice (about half a lemon)
- Salt, a generous pinch
- Tall and narrow glass jar, for making and storing the mayo
- Immersion blender
Instructions
- Add Ingredients: Pour the 1 cup of light olive oil into the tall narrow glass jar. Add the whole large egg, 1 tablespoon of Dijon mustard, 3 tablespoons of lemon juice, and a generous pinch of salt to the jar.
- Blend the Mixture: Place your immersion blender at the bottom of the jar. Blend for 10 to 15 seconds without lifting the blender to allow the mayonnaise to start emulsifying and thickening.
- Combine Fully: Once the mixture begins to thicken, slowly move the blender up and down inside the jar to blend all ingredients evenly and achieve a smooth, creamy consistency.
- Finish and Store: Remove the blender, stir the mayonnaise a few times with a spoon for uniform texture, seal the jar with a lid, and refrigerate. The mayo will stay fresh for up to one week.
Notes
- Using a tall and narrow jar helps the immersion blender emulsify the ingredients more effectively.
- You can substitute avocado oil instead of olive oil for a different flavor profile.
- Make sure your ingredients are at room temperature to prevent the mayo from breaking.
- Store mayonnaise in the refrigerator and consume within one week for safety and best taste.
- If the mayo does not thicken properly, try blending longer or ensure the egg is fresh.
- Prep Time: 5 minutes
- Cook Time: 0 minutes
- Category: Condiment
- Method: Blending
- Cuisine: American
Keywords: homemade mayonnaise, keto mayo, easy keto condiment, low carb mayonnaise, immersion blender mayonnaise, healthy fats

