Traffic Light Cake: GBBO Season 3 Begins!

The new series of The Great British Bake Off (Tuesday nights on BBC2 at 8pm) started last week and one of the challenges was ‘hidden image cakes’.

My favourites were the Union Jack cake (above) and the flower cake (below).

I was very impressed by this type of cake design as I hadn’t seen anything like it before, and of course, I wanted to try it out for myself!

As an amateur baker I decided to keep things simple for myself and just do layers of colour. Thinking about the food colouring I had in the cupboard (red, green and yellow) I decided a traffic light cake was my best option.

I followed a basic victoria sponge recipe to make the cake, seperated the mixture into three bowls using scales to make sure it was evenly split, and added the colour! I put jam in between the green and yellow layers, and homemade buttercream in between the yellow and red layers. And a final dust of icing sugar over the top!

The sponge came out really fluffy and light, and the cake looks so bright and fun! Next time I will try a more complex design…

Basic Victoria Sponge

175g butter
175g caster sugar
3 eggs
1 tsp vanilla extract
175g self raising flour
1 tsp baking powder

Whisk butter and sugar in a bowl until fluffy. Add the eggs one at a time and mix in well. Add the vanilla extract and mix in well. Sift flour and baking powder into the bowl and fold in with a metal spoon. Divide mixture into tins and bake on 180° (350°F/Gas 4) for 20-25 mins.

Tip: If you split this into 3 layers like I did, it will take less time to bake.

Once the sponge is cooked and cooled, add jam and buttercream between the layers.


50g butter
100g icing sugar
1 tsp vanilla extract

Mix ingredients together in a bowl until smooth.

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