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Instant Pot Mayonnaise Cake

Published: Dec 29, 2021 by Anna · This post may contain affiliate links · 2 Comments

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Happy New Year! To celebrate, here's a recipe for Instant Pot Mayonnaise Cake. Nothing about that name sounds appetizing, but that aside this is a great little cake. And if you haven't baked a cake in your Instant Pot yet, this is a good recipe to start with because it's about as easy as they come.

Used up the Kit Kats leftover from Halloween!

I've had my Instant Pot for a few years, but I'm only now really using it for desserts and realizing the benefits. Instant pot cakes free up the oven, they're never dry, and best of all -- they make smaller cakes. Six and seven inch cakes made in Instant Pot size pans are perfect for small to medium size families. My latest one is this Instant Pot mayonnaise cake with Circus Animals parading around a wall of Kit Kats! It was so much easier to make and decorate than a full size cake, and still more cake than we needed.

Instant Pot Cake Pan Sizes

The only thing you have to worry about is finding the perfect Instant Pot cake pans. I recommend buying a 7 inch leakproof springform and a Bundt. The key is to make sure whatever pan you buy has sides that are at least 3 inches high. Here are two that I found on Amazon -- the Nordic Ware 7 Inch Springform and this Bundt. I've seen them at stores like Marshall's and TJ Maxx, but I recommend buying ones with lots of reviews that you can trust to be leakproof. The ones I use were Aldi specials, so I was lucky.

Portillo's Copycat Cake Recipe

As for the cake, there are tons of cakes that work well in the Instant Pot, but the chocolate mayonnaise cake I recommend is an Instant Pot version of the super-easy Portillo’s Copycat Cake recipe. It bakes up light yet rich – almost like a chiffon cake, but better.  Here's a texture shot.

You have to use half a box of cake mix and half an egg, but that's really not such a big deal. Just transfer the cake mix to a zipper bag and save the rest for a second cake. Having a scale makes the process easier, but you can also measure by volume.

Half a box of cake mix is about 1 ⅔ scan cup or 216 grams

Instant Pot Mayonnaise Cake

Here's a quick rundown on how to make an Instant Pot mayonnaise cake with cake mix. Put your mixing bowl on a scale, set the tare to zero and add 216 grams cake mix, 110 grams mayonnaise, 70 grams of egg and 105 grams ice cold water. Beat the mixture very well and pour it into the pan. You then pressure cook the cake for 30 minutes, allow a 15 minute release time, and you're done. Remove from pot and let cool.

Ingredients for an Instant Pot Mayonnaise Cake

I've tested the recipe three times in the Instant Pot using the springform pan. I've also tested an even smaller version using a 28 oz tomato can which can double as a cake pan. The only problem with the tomato can is the cakes are a bit too tall and narrow. It's worth it to purchase the special Instant Pot cake pans.

And finally, if you just want to bake this in a regular pan, that's fine too! You can use the above measurements and bake in 1 9 inch layer, or just make the full recipe on the Portillo's copycat recipe page.

  • Six Inch Instant Pot Chocolate Cake
  • Nutella Instant Pot Cheesecake
  • Chocolate Mayonnaise Cupcakes
  • Duke's Mayonnaise Quiche

Recipe

Instant Pot Mayonnaise Cake

Easy Instant Pot Chocolate Mayonnaise Cake

7 Inch Springform Version – This version is pretty simple if you own a 7 inch springform. I measure everything with a scale, but I’ve listed approximate volume measures in case you don’t have one.
Print Recipe Pin Recipe
Prep Time 10 minutes mins
Cook Time 45 minutes mins
Cooling 1 hour hr 30 minutes mins
Total Time 2 hours hrs 25 minutes mins
Course Dessert
Cuisine American
Servings 6

Ingredients
 

  • baking spray or something to grease pan
  • 1 ⅔ cups SCANT cup Betty Crocker Devil’s Food Cake Mix (216 grams)
  • ½ cup Duke’s or Hellman’s (110 grams)
  • 1 large egg plus 2 tablespoons beaten egg (70 grams)
  • ½ cup minus 2 teaspoons ice cold water (105 grams)
  • Betty Crocker Dark Chocolate Icing or Homemade

Instructions
 

  • Spray a 7 inch springform pan with flour-added baking spray. Alternatively, you can just grease it with butter or shortening.
  • In the bowl of a stand mixer or in a regular mixing bowl, combine 216 grams cake mix, 110 grams mayonnaise, 70 grams beaten egg and 105 grams water. Beat for about 3 minutes, scraping the sides of the bowl once or twice. Batter will lighten in color.
  • Scrape mixture into your cake pan. Cover the cake pan loosely with a sheet of foil. This is to prevent steam from falling and condensing on the cake. You don't have to make a tight seal, you are basically just creating a little umbrella.
  • Meanwhile, boil 1 ½ cups of water in the microwave. Put the water in the instant pot, then set the cake pan on the trivet and lower it into the Instant Pot.
  • Close the pot, put the sealing valve in the middle position and set the timer for 30 minutes. When time is up, allow for a 15 minute release. Release valve, remove lid from Instant Pot and carefully lift the cake. It should have risen quite a bit. The top might crack a little, but this is okay.
  • Allow the cake to cool in the pan for about 10 minutes, then slide a knife between the pan and the cake to loosen. Remove sides. Let cool for another 20 to 30 minutes. When ready to frost, you can cut horizontally to make thin layers or leave as one thick layer.
  • Wait for the cake to cool before icing.
Keyword Cast Iron Skillet, Chocolate Cake, Instant Pot Cake, Mayonnaise
Tried this recipe?Let us know how it was!

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  1. Anna says

    December 29, 2021 at 4:02 pm

    I'm sort of obsessed with it. I've made a few scratch Instant Pot cakes as well, but I kind of like the texture of the cake mix versions better.

  2. Sue says

    December 29, 2021 at 2:40 pm

    That looks like fun!

Peanut Butter Fudge Jumbles recipe baked in a 9-inch square Pampered Chef stoneware pan.

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I'm Anna, and welcome to Cookie Madness. To learn more about me, check the About page.

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