Polka dot butter cake

  • 1 hr 30 mins cooking
  • Serves 14
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Polka dot butter cake
  • 250 gram unsalted butter, softened
  • 2 1/2 cup (550g) caster (superfine) sugar
  • 2 teaspoon vanilla extract
  • 6 medium_piece eggs
  • 1 1/2 cup (225g) plain (all-purpose) flour
  • 1 1/2 cup (225g) self-raising flour
  • 1 cup (250ml) milk
  • 315 gram white chocolate melts
  • pink, yellow, blue and green food colourings
White chocolate ganache
  • 500 gram white chocolate, chopped coarsely
  • 1 1/2 cup (375ml) pouring cream


Polka dot butter cake
  • 1
    Preheat oven to 140°C. Grease two deep 22cm (9-inch) round cake pans; line bases and sides with baking paper, extending the paper 5cm above sides.
  • 2
    Beat butter, sugar, extract, eggs, sifted flours and milk in a large bowl with an electric mixer on low speed until combined. Increase speed to medium; beat about 2 minutes or until mixture is smooth and changed to a paler colour. Spread mixture evenly into pans; tap gently on the bench to release large air bubbles.
  • 3
    Bake cakes about 1 hour. Stand in pans 5 minutes; turn, top-side up, onto wire racks to cool.
  • 4
    Meanwhile, make white chocolate ganache; stir ingredients in a large heatproof bowl over a large saucepan of simmering water until smooth. Cover; refrigerate about 3 hours or until thick. Beat ganache in a large bowl with electric mixer until firm peaks form.
  • 5
    Place white chocolate melts in a small heatproof bowl over a small saucepan of simmering water; stir until melted. Divide chocolate into four small bowls; tint chocolate with colourings.
  • 6
    Working with one colour at a time, spoon chocolate into small piping bags. Pipe small, medium and large discs onto a baking-paper-lined tray; tap tray gently on the bench to flatten rounds. Stand at room temperature until set.
  • 7
    Level top of cakes. Place one cake on a cake stand or prepared cake board; spread with one-third of the ganache, top with other cake. Spread remaining ganache all over cake. Decorate with chocolate discs.


Use small piping bags without a tube or strong plastic bags snip a tiny corner from the bag for easy piping. Prepared cake boards are available from cake decorating and craft stores; you will need one 30cm (12-inch) round board for this cake.

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