How to make marble fondant

Learn how to decorate a cake with an easy rainbow marble icing with BBC Good Food’s foolproof technique for blending different coloured fondant.

Points to remember

  • Cover the outside of your cake in a thin layer of buttercream. This is called a crumb coat.
  • Press pieces of coloured fondant icing/roll-out icing together. Knead briefly to blur the colours.
  • Dust your worksurface and rolling pin with icing sugar then roll out the icing.
  • Carefully transfer to your cake, smooth down the surface starting at the top then trim the base with a small sharp knife.
  • Wrap a colourful ribbon around to finish.

    Give it a go with our easy vanilla cake recipe.

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