Butter Mayonnaise - Buttered Side Up

Butter Mayonnaise

Butter Mayonnaise - Buttered Side Up
I love homemade mayonnaise.

You can so easily customize it to your preferences. It's kind of like magic watching it thicken as you pour liquid fat into an egg. And it's awesome to know that you can always whip up a batch if you run out of your favorite brand of store-bought mayonnaise.

Butter mayonnaise is fantastic because: butter. It makes a pretty thick mayo, and it's smooth and, well, buttery. It's so so good on Mayo Salmon (recipe coming soonish), in tuna salad, or homemade ranch dressing.

Butter Mayonnaise - Buttered Side Up
The one downside to butter mayonnaise is that it gets hard in the refrigerator. However, you can put your jar in some warm water to get it soft quickly.

You can use a whisk (I don't advocate this unless you like whisking for a LONG time), a blender, or a stick blender to make this recipe. Just be careful about splatters as you pour in your butter!

As always, it's recommended that pregnant/nursing women, children, and those with compromised immune systems use caution when consuming raw eggs. I think it's important to use high-quality eggs if you choose to consume them raw.

Oh, and if you prefer a mayonnaise that stays soft in the fridge, check out my avocado oil mayonnaise on The Pioneer Woman's blog. I refer to it often to use my own recipe. I'm such a doofus.

Butter Mayonnaise

recipe by Erica Kastner | 10 mins | Serves 6-8 | PRINT


  • 1 large egg,
  • 2 teaspoons freshly squeezed lemon juice,
  • 1/4 + 1/8 teaspoon salt (or 1/2 if using unsalted butter),
  • 2 teaspoons prepared mustard,
  • 1 cup butter, melted

Using a whisk, blender, or stick blender, blend the egg, lemon juice, salt, and mustard until smooth.

While blending, slowly add the melted butter. Watch out for splatters! Continue blending until the mayo gets thick.

Use immediately and store any leftovers in the refrigerator for about a week. Soften mayo by placing jar in some warm water.


  1. You are a butter goddess...

  2. You are a butter goddess...

  3. This comment has been removed by a blog administrator.

  4. Replies
    1. Pretty much, just minus the cayenne/hot sauce. :)

  5. I make this all the time since discovering it - it's soooo good. Like having hollandaise sauce on tap! ;) We avoid vegetable oils in our house as much as possible, and I really dislike the taste of olive oil mayonnaise, so this has been a lifesaver! :) Thank you!

    1. So glad you like the recipe! :) Yeah, I'm not a fan of olive oil mayo unless that's specifically the flavor you're going for. If that makes sense. Haha!


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