Galaxy Log Cake

This colorful three-layer cake sandwiches moist chocolate cake with layers of blackberry frosting all topped with edible sprinkles.


Galaxy Log Cake

  • 100g cocoa powder
  • 350g all-purpose flour
  • 1 tsp salt
  • 1 tsp bicarbonate of soda
  • 450g caster sugar
  • 350g unsalted butter, softened
  • 2 large eggs, at room temperature
  • 350ml milk
  • 5 drops black food gel
  • 1 cup of purple, white and blue assorted shapes sprinkles
  • metallic star sprinkles


  • 500g unsalted butter, softened
  • 2 ½ cups powdered sugar
  • 2 tbsp milk
  • 2 tsp
  • 4 drops purple food gel
  • 4 drops pink food gel
  • 2 tsp blackberry essence


  1. Preheat a fan-forced oven to 160C (320F) or 180C (356F) for a conventional oven. Spray a 36 x 20cm baking tray. Line with baking paper. Set aside.
  2. In the bowl of a stand mixer fitted with the paddle attachment, add the cocoa powder, plain flour, salt, bicarb soda and sugar. Turn mixer on low speed and allow it to mix for a couple minutes to help everything combine well! (alternatively you may do this by sifting the ingredients together).

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