Then make the other 1 quantity of the sponge cake recipe. Grab four bowls and put 1 cup of cake crumbs into each one. Then add half a cup of the cake batter and stir it through until you get a thick paste that can hold it’s own shape.
Add colour to each bow. Blue for sadness, green for disgust, orange or yellow for joy and red for anger.
Then take the remaining cake batter and fold through some pink and blue food colour to make purple.
Add a scoop of the purple batter to the bottom of three lined 20cm (7.87 inches) or 8″ cake tins. Put the coloured mixture into a piping bag fitted with a large round piping tip and pipe circles into the cake. See the video for demonstration.
Add the rest of the purple cake batter over the top. Bake in the oven until they are cooked. Then let them cool and level off the tops.
Layer and cover the cake using purple buttercream.
PLace the gumballs into a bag with some white luster, shake and rub the bag until all the gumballs have a fine coat of luster dust so they shimmer like the memories in the movie.