Chocolate and Kewpie Japanese Mayonnaise Cake

Posted by in Chocolate Recipes on April 24 2013 | Leave A Comment
Preperation Time: Cooking Time:

Chocolate Mayonnaise Cake

Kewpie Mayonnaise. Its popularity in Japan cannot be overstated. It’s a smoother, creamer mayonnaise, made with rice vinegar rather than distilled vinegar. With a sweet and tart taste it blends nicely into this recipe to produce a unique, light but rich chocolate mayonnaise cake.

If Kewpie isn’t easily available, you can of course substitute any old mayo – but there is something special about Kewpie, something that works so well with any food, with chocolate. Find it, try this recipe, you won’t be disappointed.

Ingredients (to make mayonnaise cake)

  • 150g Japanese mayonnaise (Kewpie)
  • 100g caster sugar
  • 150g plain flour, sifted
  • 1/2 tsp baking powder
  • 1/2 tsp bicarb soda
  • 35g cocoa powder
  • 150ml water

Ingredients (to make chocolate ganache)

  • 100g dark chocolate
  • 50ml cream

Chocolate and Japanese Mayonnaise Cake


Preheat oven to 170ºC (fan-assisted 150ºC). Grease and line a loaf tin with baking paper. Set aside.

Whisk the mayo and sugar in an electric mixer on medium speed for 3 – 5 minutes until the sugar dissolves.

Chocolate and Japanese Mayonnaise Cake

Chocolate and Japanese Mayonnaise Cake

Sift together the flour, baking powder, bicarb soda and cocoa then add to the mayo mixture. Mix on low speed until combined.

Chocolate and Japanese Mayonnaise Cake

Slowly add the water and mix until well combined.

Chocolate and Japanese Mayonnaise Cake

Pour the mixture into the prepared cake tin and bake for 35 – 40 minutes. Allow the cake to cool in the tin before removing.

Chocolate and Japanese Mayonnaise Cake

Chocolate and Japanese Mayonnaise Cake

Place the chocolate and cream in a medium heatproof bowl over a saucepan of simmering water (make sure the bowl doesn’t touch the water). Stir occasionally with a metal spoon until the chocolate is melted and the mixture is well combined. Pour the chocolate ganache over the top of the cooled mayonnaise cake. Enjoy!

Chocolate and Japanese Mayonnaise Cake

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Comments On This Post

  1. Kewpie is richer than our regular mayo because it’s made with egg yolks only, not whole eggs. They also include apple vinegar as well as malt vinegar in their recipe.

    If you don’t want to splurge for Kewpie, which is at least £5 a bottle here in the UK, you could use regular mayonnaise and add an extra egg yolk or two to up the richness?

  2. I love your chocolate ganache look very ravishing if I may say.

  3. Any kind of Mayo seems so odd, but I’m going to have to give this a try sometime. I’m curious what other recipes you’ve used this kind of mayo on.

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