Rainbow Layer Cake Recipe

Ingredients

Step 1. Heat oven to 180° Celsius and grease round cake pans with butter.
Step 2. In a large bowl, beat together cake mix (take vanilla flavoured), water, oil and eggs until well mixed, scraping sides of the bowl occasionally.
Step 3. Divide batter evenly among 6 small bowls around 2 cups each.
Step 4. Using 7 different food colours, tint batter in 1 bowl blue, 1 bowl red, 1 bowl green, 1 bowl yellow, 1 bowl orange (using red and yellow) and 1 bowl purple (using blue and red).
Step 5. Refrigerate 3 colours of batter until ready to bake. Pour the remaining 3 colors of batter into cake pans.
Step 6. Bake for about 18 to 20 minutes or until cake springs back when touched lightly in centre. Remove the cake and let it cool completely.
Step 7. Then bake and cool the remaining 3 cake layers as directed. In a large bowl, beat shortening and butter with electric mixer on medium speed until light yellow.
Step 8. On low speed, gradually beat in powdered sugar, vanilla, milk, 1 tablespoon at a time, beating until frosting is smooth, light and fluffy.
Step 9. On serving plate, place purple cake layer. Spread with frosting to leaving 1/4 inch of edge. Repeat with blue, green, yellow, orange and red cake layers.
Step 10. Spread light coat of frosting on top and side of cake to seal each layer, then frost with remaining frosting on top. Chill the cake before serving.