RAINBOW LAYER CAKE
Step 1 - Prepare vanilla cake mix.
Step 2 - Separate batter into 5 bowls and add 1-2 tbsp of coloured sprinkles to each (a different colour per bowl) Be careful not to over mix otherwise colour will bleed into batter.
Step 3 - Bake layers at a low oven temperature (140 degrees) and adjust baking time accordingly from recipe.
Step 4 - Stand cakes for 15 mins then remove from pan to cool.
Step 5 - Using a cake board as a base layer cakes, using white buttercream in between each layer
Step 6 - Cover cake in white buttercream (crumb coat cake if necessary) and place in fridge for 30 mins
Step 7 - Seperate white buttercream into 5 bowls and add food colouring to each to create 5 different colours
Step 8 - Using an offset spatula create small strokes of one colour around the top and sides of the cake. Repeat with remaining colours until cake is covered as desired.
Step 9 - Fill a piping bag with white buttercream and pipe small swirls around the edge of the top of the cake. Top with sprinkles.