Rainbow cake recipe - Recipes - BBC Good Food

A stunning celebration cake of six or seven colourful layers and a buttercream icing - an impressive showstopper.

Just look how colourfull it is. Wish i could make something like this.


Here is the recipe -


125g butter , softened, plus a little extra for greasing
225g plain flour
150g golden caster sugar
3 medium eggs (very important to use the correct size)
1 tsp baking powder
pinch of salt
1 tsp vanilla extract
edible food colouring - red, orange, yellow, green, blue and purple, plus optional pink (see below)

1 tsp vanilla extract
3 x 250g tubs light cream cheese or mascarpone
350g icing sugar

Heat oven to 180C/160C fan/gas 4. Grease 2 x 20cm round sandwich tins and line the bases with baking parchment. Tip all the sponge ingredients, apart from the food colouring, into a mixing bowl, then beat with an electric whisk until smooth.
Working quickly, weigh the mixture into another bowl to work out the total weight, then weigh exactly half the mixture back into the mixing bowl. Pick 2 of your colours and stir a little into each mix. Keep going until you are happy with the colour - the colour of the batter now will be very similar to the finished cake, so be brave! Scrape the different batters into the tins, trying to spread and smooth as much as possible - but try not to waste a drop of the batter - a rubber spatula will help you. Bake on the same oven shelf for 12 mins until a skewer poked into the middle comes out clean.
Gently turn the cakes out onto a wire rack to cool. Wash the tins and bowls thoroughly, and start again from step 1 - this time using another 2 colours. Unless you`re making the optional pink layer, repeat one more time to get 6 sponges, all of different colours. Leave them all to cool.
To make the icing, very briefly beat the vanilla and cream cheese or mascarpone with an electric whisk until smooth. Sift in the icing sugar and gently fold in with a spatula. Be careful - the more you work it, the runnier it will get, increasing the chance of splitting.
Smear a little icing on your cake stand or plate - just a splodge to stick the first sponge. Start with the red, then spread with some icing right to the very edge. Repeat, sandwiching on top the orange, yellow, green, blue and finally purple sponges. Spread the remaining icing thickly all over the sides and top of the cake.
MAKE AN EXTRA LAYER My recipe makes six sponge layers, but you can make one extra layer by halving the cake quantities and baking a single sponge dyed pink - use this as your seventh layer. It`s not strictly necessary, the cake will still look fabulous with six - but why not! TIPS FOR A PROFESSIONAL FINISH When you make each batch, keep a tiny blob of batter back - then, as you dye each future batter, you can make sure the colour strengths match. A palette knife, which has a long, rounded and flexible blade, makes icing big cakes much easier, as the blade is long enough to scrape the whole side at once. You can buy them in cookshops. A turntable really helps if you`re trying to ice a big cake. If you don`t have one, use a cake stand instead. HOW TO CREATE THE PERFECT COLOURS To make sure you`ve got a good balance of colours, test your colourings in a little water first - I tried over 20 shades before I found my favourite combination! WHICH COLOURS DID WE USE We used SK Professional Paste Food Colour and Quality Food Colour paste ranges from http://squires-shop.com. Buy pots in Red, Orange, Sunflower, Fern, Hyacinth, Purple and Pink. From the supermarket, try Dr Oetker gel food colours in Bright Red, Neon Orange, Sunshine Yellow, Lime Green, Sky Blue, Ultra Violet and Hot Pink. TRIMMING YOUR SPONGES We`ve kept the sponges as light as possible so they may be slightly rounded when they come out of the oven. You may want to trim them just a shade, to flatten so they all stack neatly together.
601 kcalories, protein 11g, carbohydrate 73g, fat 29 g, saturated fat 18g, fibre 2g, sugar 47g, salt 0.6 g

Recipe from Good Food magazine, April 2013.

Source link: http://www.bbcgoodfood.com/recipes/3028705/rainbow-cake

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