Royal blue velvet cake

Royal blue velvet cake


12 people made this

About this recipe: Hey guys I'm making a blue velvet cake with buttercream frosting. I was inspired by a baking book recipe. With this recipe you can add any food colouring you desire, not just blue.

TwinRecipes Hawaii, United States

Makes: 1 (23cm) cake

  • For the cake
  • 225g (8 oz) butter, softened
  • 340g (12 oz) caster sugar
  • 2 eggs, beaten
  • 1 teaspoon cocoa powder
  • 3 to 4 teaspoons blue food colouring, or as needed
  • 280g (10 oz) plain flour
  • 1 teaspoon salt
  • 250ml (9 fl oz) buttermilk
  • 1 teaspoon vanilla extract
  • 1 teaspoon bicarbonate of soda
  • 1 teaspoon white wine vinegar
  • For the buttercream
  • 110g (4 oz) unsalted butter
  • 450g (1 lb) icing sugar
  • 1 teaspoon vanilla extract

Prep:30min  ›  Cook:30min  ›  Ready in:1hr 

  1. Preheat the oven to 180 C / Gas 4. Grease two 23cm (9 in) round cake tins and line the bases with baking parchment.
  2. In a mixing bowl, beat the butter until it's light and creamy, then slowly add in the sugar until that's light and creamy, too.
  3. Gradually beat in the eggs, cocoa powder and food colouring. (You can start with less food colouring and add more depending on the strength of your colour.)
  4. Sift in the flour and salt into the mixture alternately with the buttermilk until it's well blended. Add in the vanilla extract, bicarb and vinegar. Divide the cake mixture between the two tins.
  5. Bake for 30 minutes or until cocktail stick inserted in the centre comes out clean. Cool in the tins for 5 minutes, then place on a wire cool rack to cool completely.
  6. For the buttercream, beat the butter until it's light and creamy then slowly sift or add in the icing sugar, then beat in the vanilla.
  7. When the icing is finished and the cakes are completely cool, spread about 1/4 of the icing on top of one of the cakes, then place the other cake on top to make a sandwich. Spread the remaining icing over the top and sides of the cake.
  8. Then enjoy!! :)


If you want to make cream cheese frosting just add 200g (7oz) of cream cheese to the icing mixture.

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Reviews (7)


I love this recipe. I have made it twice now but i was wondering if I can use any other food colouring. will it still work? - 20 May 2014


Easy to follow recipe which worked brilliantly and tasted delicious - I used Wilton gel colours and it came out a lovely bright blue. Will definitely use this recipe again. - 24 Jan 2014


this recipe is AMAZING took me forever to find a recipe that works and this one does try it out!!!! :D - 06 Aug 2013

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