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thumbnail image of marble halloween traybake cake slices

Halloween Traybake Cake

A fluffy purple and orange sheet cake with black frosting and white chocolate ghosts on top.
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Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 12 slices
Calories: 476kcal

Ingredients

Traybake cake

  • 250 g Butter, softened
  • 250 g Caster sugar
  • 1 Teaspoon Vanilla extract
  • 4 Medium Eggs
  • 250 g Self-raising flour
  • 2 Tablespoons Milk
  • Orange food colouring (start with a small amount then add more as needed)
  • Purple food colouring

Black frosting

  • 70 g Butter, softened
  • 300 g Icing sugar
  • 1-2 Tablespoons Milk
  • 1 Teaspoon Vanilla extract
  • Black food colouring

Decoration

  • Homemade white chocolate ghosts
  • Halloween cake decorations and/or sprinkles (I used Cake Decor Halloween spooky mix sprinkles and Dr. Oetker chocolate Halloween decorations)

Instructions

Traybake cake

  • Preheat your oven to 180℃ (160℃ for fan ovens). Line an 8x10-inch tin with baking paper.
  • In a large bowl, cream together the butter and sugar then stir in the vanilla extract.
  • Mix in the eggs and flour, a little bit at a time, until you have a smooth cake batter. Add the milk as needed to loosen the batter.
  • Divide the cake batter into two bowls. Stir the orange food colouring into one and the purple food colouring into the other.
  • Place spoonfuls of cake batter into your tin, alternating the colours as you go. Then use a toothpick to briefly swirl them together (but not too much).
  • Bake for 25-30 minutes until a toothpick comes out clean. Don't worry if the colours look a little faded- they'll still be super vibrant when you cut into the cake.
  • Let the cake cool in the tin for around 10 minutes then flip it out onto a wire rack and leave to cool completely.

Frosting

  • Add the butter to a bowl and mix in the icing sugar a little bit at a time, using the milk to loosen it as needed.
  • Stir in the vanilla extract and black food colouring.
  • Spread the frosting over your cooled traybake cake. Top with white chocolate ghosts and other edible Halloween decorations.

Video

Notes

  • Store in an airtight container in the fridge for up to 5 days.

Nutrition

Serving: 1slice | Calories: 476kcal | Carbohydrates: 61g | Protein: 4g | Fat: 24g | Saturated Fat: 14g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Cholesterol: 55mg | Sodium: 24mg | Potassium: 28mg | Fiber: 1g | Sugar: 47g