Mayo Cake with Peanut Butter Icing

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"This is my mom's recipe handed down from her mother. The cake is very moist and light but it's the icing that makes this cake unresistable!"
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40 m servings 373 cals
Serving size has been adjusted!

Original recipe yields 16 servings



  • Calories:
  • 373 kcal
  • 19%
  • Fat:
  • 20.6 g
  • 32%
  • Carbs:
  • 43.4g
  • 14%
  • Protein:
  • 6.6 g
  • 13%
  • Cholesterol:
  • 8 mg
  • 3%
  • Sodium:
  • 329 mg
  • 13%

Based on a 2,000 calorie diet

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Nutritional Information

1 Serving
Servings Per Recipe:
Amount Per Serving
  • * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
  • ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
  • (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.


  • Prep

  • Cook

  • Ready In

  1. Preheat oven to 350 degrees F (175 degrees C). Grease a 9-inch baking dish.
  2. Mix flour, 1 cup sugar, mayonnaise, water, cocoa powder, and baking soda together in a bowl until smooth; pour into the prepared baking dish.
  3. Bake in the preheated oven until a toothpick inserted in the center of the cake comes out clean, 20 to 25 minutes.
  4. Stir 1 cup sugar, evaporated milk, and margarine together in a saucepan; bring to a boil and cook for 2 minutes. Remove saucepan from heat, add marshmallows, and stir to melt them completely into the mixture. Stir peanut butter and vanilla extract into marshmallow mixture until icing is smooth; pour over warm cake.


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My twelve year old loves to bake and begged me this evening to make something but we're a day or so out from our grocery trip. We searched by ingredients for a recipe and this came up! Glad it d...

Thank you, Cricket18 for posting this recipe! Years ago my dad told about his mother and aunts making mayonnaise cakes during the war because it was readily available and eggs and oil were not. ...

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