Rainbow in Forest Cake

This is my rainbow idea!  I'm sure rainbows do not appear in dense forests but I decided to make my indigo with forest berries!  I brushed each layer with amaretto icing and the taste will develop after few hours.  You can change the amaretto to limoncello and give it the sunshine taste!  This recipe makes about 12 slices.

Make two batches of sponge mixture and divide each mixture into three separate bowls.  The sponge ingredients are for 1 batch

4 eggs

2/3 cup castor sugar

1/3 cup corn flour

1 cup Self raising Flour

30g melted butter

3 different colours

Amaretto Ice (enough for all layers)

3 tablespoons Amaretto

300g Icing Sugar

1/2 cup water

300g frozen berries

100g sugar

Juice of 1 lime

Shavings of white chocolate to decorate

Line three baking sheets size 25cm x 40cm with baking paper.  Pre heat oven 175c.

Beat eggs and sugar together till stiff peaks form.  Meanwhile sift the flours together then fold in the mixture using a metal spoon.  Fold in melted butter and divide mixture into three separate bowls.  Add drops of food colouring, choose from orange, yellow, red, blue, green and violet. Mix the colours taking care not to remove too much air from the sponge mix. Pour into the baking trays and level with spatula.  Bake for about 10 to 15 minutes. Remove from oven and cool on wire racks without removing the baking paper.

Meanwhile prepare the Amaretto icing by adding all ingredients in a food mixer and mix for 2 minutes to get a smooth runny icing.

Heat the frozen berries, add sugar and stir.  Bubble for five minutes till sugar dissolves but the berries remain whole.  Cool mixture and chill till it is needed.

Repeat the process for the remaining three layers of cake. Cake can be frozen at this stage.

Place the red layer on a clean tray.  Brush with amaretto ice then take the orange layer and place it on top.  Remove the baking paper and brush the orange layer with amaretto icing again.  Continue with the remaining layers.  

Trim the sides then divide the cake into twelve or sixteen portions and place each portion on a serving plate.  spoon over the berry mix then decorate with chocolate shavings.  Vanilla ice cream or custard is the ideal company!