Ingredients: ( for no-bake no-cook rainbow cake )

White bread slices – 12 ( edges trimmed )
Sugar Syrup – 1 cup ( 300 ml )
Food color – RED YELLOW GREEN BLUE

for Buttercream icing:
Butter (softened) – 500 gms ( or 2 cups / 4 sticks )
powdered sugar / icing sugar – 1 cup ( 200 gms )

Method:
Step 1) Trim the edges of the bread

Step 2) Divide sugar syrup into 6 bowls.

Step 3) Add food colors into the sugar syrup bowls as below. Mix it.

1. Red – 2 drops
2. Orange – 3 drops red + 2 drops yellow
3. Yellow – 3 drops
4. Green – 2 drops
5. Blue – 2 drops
6. Purple – 3 red drops + 1 blue drops

Step 4) Make Butter cream icing: Beat butter until soft and fluffy. For 2 – 3 minutes.
Sift in icing sugar in 2 or 3 batches. Beat again for another 3 – 4 minutes until fluffy.( To lighten the buttercream icing, add a tbsp of milk at a time and beat until fluffy.

Step 5) Take a cake stand or flat plate to make the cake. It should fit 2 bread slices. Spread some buttercream in the middle of the cake stand or plate.

Step 6) Making the cake:

1. Take 2 bread slices, brush purple color on both the sides. Place it on the cake stand. Spread buttercream on top
2. Take 2 bread slices, brush blue color on both the sides. Place it on the cake stand. Spread buttercream on top
3. Take 2 bread slices, brush green color on both the sides. Place it on the cake stand. Spread buttercream on top
4. Take 2 bread slices, brush yellow color on both the sides. Place it on the cake stand. Spread buttercream on top
5. Take 2 bread slices, brush orange color on both the sides. Place it on the cake stand. Spread buttercream on top
6. Take 2 bread slices, brush red color on both the sides. Place it on the cake stand. Spread buttercream on top
7. Coat fully with butter cream ( seal the cake )
8. Take 4 bowls and add some butter cream. Add 4 colors in each bowl. red, yellow, green and blue in each bowl to make 4 colors.
9. Take a plastic wrap / cling wrap, place the colored butter cream in 4 lines ( red, yellow, green, blue ). ( see video for an idea ). roll it from one end and seal both the edges. Cut one end of the plastic wrap.
10. Place inside the icing bag ( I used star nozzle ). Decorate the cake as you wish.
11. Cut and enjoy 😀