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Instant Pot Mayonnaise Cake
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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.
Course Dessert
Cuisine American
Keyword Cast Iron Skillet, Chocolate Cake, Instant Pot Cake, Mayonnaise
Prep Time 10 minutes
Cook Time 45 minutes
Cooling 1 hour 30 minutes
Total Time 2 hours 25 minutes
Servings 6
Cost 5

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.