I wanted my layers to be full size 9 inch layer cakes and not thin.
Multi flavoured rainbow cake.
Then i added the eggs and self raising flour and split the mixture between three bowls.
Reline and grease the pans and bake the final three layers.
One cake mix makes only 2 full sized layers.
Cake mix as directed on package.
Trim rounded tops off cakes to level if needed.
Grease and flour 2 9 inch round pans.
Carefully remove the aluminum wrapped cardboard from the cake pan and flip the cake out onto a cake stand.
Spread with frosting to within 1 4 inch of edge.
Cover bottoms with parchment.
On serving plate place purple cake layer.
Cover the cake with chocolate buttercream taking care to keep track of what layer is where.
It s kind of a cross between a white cake and a hummingbird cake in flavor.
It s one of my go to cake flavors whenever i m making something for a crowd.
You just need to set aside some time to bake three sets of sponges then decorate your showstopper and i ve made sure there s plenty of icing so no danger of running short before the end.
It took a small box of each flavor of gelatin in the double recipe so no measuring needed.
Pour half into separate bowl.
Repeat with blue green yellow orange and red cake layers.
It s simple tender delicious and pairs up with pretty much any frosting flavor under the sun.
Allow the cake layers to cool completely.
Allow the cakes to cool in the pans for 5 minutes then turn out onto a wire rack.
I rrrrreally like it with cream cheese frosting though.
Step by step i own three 8 cake tins so i did three layers of the cake at a time i started by creaming the butter and sugar together with the lemon zest.
Spread light coat of frosting on top and side of cake to seal in crumbs then frost with remaining frosting.
Allow the cake to cool for up to 2 hours.
So i doubled this recipe and filled my cake pans a little fuller and had enough left to make 12 regular sized cupcakes.
Of course if vanilla is your thing then you can easily make this cake a vanilla rainbow cake too.