Moist Chocolate Cake

    1 hour

    The secret ingredient to this incredibly moist cake is mayonnaise! It's quick to throw together and everyone will love it. You can also use this recipe to make cupcakes.

    129 people made this

    Serves: 12 

    • 85g plain chocolate, chopped
    • 250ml mayonnaise
    • 2 tablespoons vinegar
    • 2 tablespoons vanilla extract
    • 375g plain flour
    • 400g caster sugar
    • 2 teaspoons bicarbonate of soda
    • 1 teaspoon salt
    • 475ml warm water

    Prep:20min  ›  Cook:40min  ›  Ready in:1hr 

    1. Preheat oven to 180 C / Gas 4. Grease and flour a 20x30cm baking tin.
    2. Melt the chocolate in a large bowl in the microwave. Stir in the mayonnaise, vinegar and vanilla.
    3. Combine the flour, sugar, bicarbonate of soda and salt together. Gradually fold into the chocolate mixture.
    4. Slowly stir in the warm water. Pour batter into prepared tin.
    5. Bake in preheated oven for 30 to 35 minutes or until a skewer inserted into the centre of the cake comes out clean. Allow to cool.

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    Reviews & ratings
    Average global rating:

    Reviews in English (105)


    Not impressed at all. Not very chocolatey and was a huge cake.  -  02 Mar 2013


    At first I thought it was going to be a dud cake, as the batter tasted really weird. But I baked it anyway, and it was 5 stars! It was tested by 3 adults and 7 kids, all of them said "2 thumbs up!" and the 10 year old said "you should go make this cake at a cake making place and be the manager cause this cake is sooo good!". This is a great, chocolatly, thick and creamy cake! YUM  -  08 May 2002  (Review from Allrecipes US | Canada)


    Don't let the mayonaise deter you.... this is the most delicious cake I have ever tasted. I use sweetened chocolate instead of unsweetened but other than that, I change nothing. The last time I made it, I topped it with "whipped cream cheese frosting" and it was talked about for days. Thanks.  -  28 Oct 2004  (Review from Allrecipes US | Canada)