Again - I have no idea how Just Mayo tastes, as it is not available in Europe, but allow me again to share a recipe for a homemade vegan mayo I personally find quite awesome (and much better than the "Hellman's Vegan" I have found in a shop in Spain and tried out.
Not my own recipe, but a recipe from a German site that my son found on the internet. Unfortunately I could not find it again, I only have it saved as word document on my PC. Otherwise, I would of course give due credit to the original inventor!
Ingredients:
250 ml soymilk
200 ml vegetable oil (original suggestion: soy oil, I normally use sunflower)
1 tablespoon of lemon juice or vinegar (I typically use vinegar)
1 teaspoon of sea salt
1 teaspoon of pear syrup (honestly, I think you can leave that one out)
1 small boiled potato (this is the game changer )
optional: 1 clove of garlic (but I definitely suggest to add this)
Blend the soymilk with 100 ml of the oil for about one minute on high setting in your food processor.
Slowly add the remainder of oil while the blender is still running on medium/low setting. Add the remaining ingredients and blend together. The starch of the potato is very important to create the creamy consistency.
Add a clove of garlic for stronger taste (I definitely suggest that!). Cool in the fridge for about 2 hours.
The pear syrup is the one thing that I think you can omit, or possibly replace with something else (e.g. agave/maple syrup?).
You can make it yourself by putting a pear into a small saucepan with some suger and water and let it simmer at medium temperature for a while.
Best regards,
Andy