How To Make Homemade Mayonnaise Last Longer: Add Yogurt Whey
Sneak Peek: Find out how to make homemade mayonnaise last longer by adding a small amount of yogurt whey to extend the window of freshness from a week to a month.
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You may have a new reason to save the whey you get from draining yogurt. Keep reading to find out how this magical ingredient will help you make homemade fermented mayonnaise that can extend the shelf-life (in your fridge) for up to a month.
Don’t worry. Adding a small amount of whey won’t affect the taste of your mayo.
Does making mayonnaise seem crazy?
In reality, I don’t do it all that often myself. But once in a while, it’s a magical and gratifying experience.
Why make mayonnaise at home?
#1
The convenience factor
In the event you run out of your usual mayonnaise, the option to make it yourself could save you a last-minute trip to the grocery store. All of the ingredients are likely already in your kitchen.
#2
Customizable
Not only will you get mayonnaise with an incredibly smooth and velvety texture, but you can customize it for your taste or a specific recipe. Add herbs, garlic, and lemon, among other things.
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How long does homemade mayonnaise stay fresh?
If you’ve never made mayonnaise before, you may not know that ordinarily, homemade mayonnaise recipes are supposedly only good for a week in the fridge. Of course, commercially-made mayonnaise has preservatives added so it keeps much longer.
So why make it myself? I don’t know about you, but our mayonnaise usage can be sporadic. I’m afraid I wouldn’t be able to use an entire recipe in a week.
How whey extends the freshness of mayo:
As it turns out, adding whey (that yellowish liquid you see collected on top when you first open a container of yogurt) to homemade mayo seems to extend the freshness window up to a month. It’s called Lacto-fermented mayonnaise or fermented mayonnaise.
If you make Greek yogurt at home, save a little bit of the whey you strained from your yogurt.
Not into homemade yogurt? No worries! Pour off the liquid you see on top of commercial yogurt when you first open it. You only need a tablespoon. Of course, the yogurt should be unflavored.
Tips for making homemade mayo:
Most recipes call for using a blender to mix up mayonnaise, but a food processor will also work. And guess what? A whisk and a bowl will do the job if you are in the mood for a little exercise.
In reality, what’s most important about making mayonnaise is that your eggs be at room temperature before you start. A bowl of warm water out of the faucet will warm your unshelled eggs in just a few minutes if you haven’t planned ahead.
How to make homemade mayonnaise with whey that makes it stay fresh longer:
Add the first five ingredients to your blender.
Blend well.
Slowly drip oil into the blender.
Stir yogurt whey into mayonnaise. Store in a jar. Leave finished mayonnaise at room temperature for 8 hours to activate the enzymes found in yogurt whey and extend the shelf-life of your mayonnaise.
FAQ about Homemade Mayonnaise with Yogurt Whey:
I’ve heard from a couple of readers that their mayonnaise wasn’t as thick as they would like. I went back to the kitchen and experimented a bit. If you will use 2 egg yolks instead of 1 whole egg and 1 egg yolk, and reduce the vinegar to 1 teaspoon instead of 2, your mayonnaise will be thicker if all other things are equal.
If you have an immersion blender, I encourage you to try making mayonnaise with it. Pour the ingredients into the plastic container that often comes with it or use a quart glass jar.
This is how you do it: Add all the ingredients (except the pepper) in the order given with the oil last. Plunge the blender to the bottom of the jar or container. Turn on the immersion blender and slowly pull it up through the mixture. Take about 20 seconds to go from the bottom to the top. Then pump up and down two or three times. Stir in the pepper by hand. Let the mayonnaise stand at room temperature for eight hours before storing it in the fridge.
If you mix the mayo too long, it will begin to break down. Add one tablespoon of boiling water and mix it with the mayonnaise to make it thick again.
If you have questions or suggestions, email me privately to Paula at saladinajar.com. Hope to see you again soon! Paula
Homemade Mayonnaise that Lasts Longer
Ingredients
- 2 egg yolks - room temperature
- 1 teaspoon apple cider, white vinegar, or lemon juice
- 1 teaspoon Dijon mustard
- 1 tablespoon whey - drained from plain yogurt
- Pinch of sea salt
- 1 cup avocado oil - or vegetable oil
- Dash of cayenne - red pepper
Instructions
- Combine first five ingredients in a food processor bowl, a blender, or a medium mixing bowl. Blend well.
- Drip or barely trickle 1 cup of avocado oil into egg mixture with machine on or while you whisk vigorously by hand.
- Add a dash of cayenne.
- Pour finished mayonnaise into a glass jar and cover. Allow to sit on the kitchen cabinet at room temperature for 8 hours, then refrigerate.
Paula Rhodes, author
I’m a retired home economist, wife, mother, grandmother, and creator of Saladinajar.com. I believe you don’t have to be a chef to find joy in creating homemade food worth sharing. Here you’ll find time-saving tips, troubleshooting advice, and confidence-inspiring recipes to make life in the kitchen more fun, appetizing, and satisfying.