Marble Banana Cake with Berry purée

Marble Cake
6 bananas (two for each layer)
3 cups of sugar(1 cup for each layer)
1 1/2 cup of milk(1/2 cup for each layer)
7 1/2 tsp baking powder (2 1/2 tsp for each layer)
1 1/2 tsp of salt(1/2 tsp for each layer)
1 1/2 cup of oil(1/2 cup for each layer)
6 cups flour( 2 cups for each layer)
Some chocolate chips
Blue, red and yellow food coloring (one for each layer)
3 eggs (one for each layer)
6 tsp vanilla essence(2 tsp for each layer)

Strawberry Puree
8 strawberries
1/2 cup of milk

Icing
Butter
Icing sugar

Method:
Step 1: Preheat oven to 180 degrees
Step 2: Mash 2 bananas
Step 3: Add 1 cup of sugar
Step 4: Mix it well.
Step 5: Add 1/2 cup of milk
Step 6: Mix well.
Step 7: Add 2 1/2 tsp of baking powder
Step 8: Add 1/2 tsp of salt
Step 9: Mix well.
Step 10: Add 1/2 cup of oil
Step 11: Add 2 cups of flour
Step 12: Mix well.
Step 13: Add some chocolate chips
Step 14: Add some food coloring.
Step 15: Mix well.
Step 16: Add 1 egg
Step 17: Add 2 tsp vanilla essence
Step 18: Mix well.
Step 19: Do the same for the other two layers.
Step 20: Spray baking pan with cooking spray or butter with butter
Step 21: Add small of each mixture.
Step 22: Do a marble effect by using a fork and swirling it around.
Step 23: Put it in the oven for about 10 - 15 minutes and then put it in the fridge.( Do the same for each layer)

Strawberry Puree
Step 1: Slice strawberries up into halves
Step 2: Add into blender or electric mixer
Step 3: Add 1/2 cup of milk and blend until smooth.

Icing
Step 1: Cream butter
Step 2: Add icing sugar and mix

VIDEO: https://www.dropbox.com/s/33zyniodtrwyuoc/Project_08-21_HD%20720p.mp4?dl=0