Steamed Egg White Rainbow Cake

Found an old recipe in my recipe file and thought of giving it a try. This cake uses only egg whites which happen that my neighbor gave me during her baking cake lapis for CNY and I had left in the freezer to clear.   The layering of the cake can be quite a time consuming but it was worth every effort.

Ingredients:
500g egg white (about 20 large eggs ~ 60g)

¼ cup evaporate milk

1 tsp vanilla essence

150g melted butter

225g castor sugar

300g top flour

1 tbsp ovalette

½ tsp for each color (Red/Green/Yellow)

1 tbsp chocolate emulco

¼ tsp salt

Directions:

1. Beat egg white at high speed.  Add sugar bit by bit once the egg white turns bubbly.  Continue beating till soft peak.
2. Add milk, vanilla, ovalette & butter into the egg batter & continue mixing
3. Add flour & salt & mix till good blend.
4. Split the batter equally into 4 parts & add color to each part & chocolate emulco into 1 part.
5. Grease a baking tin with butter & scoop 1 tbsp of yellow mixture into the center of the baking tin, continue with 1 tbsp of the red onto the yellow mixture, scoop 1 tbsp of the green mixture onto the red, scoop 1 tbsp of the chocolate mixture on the green and repeat with the yellow, red, green and chocolate until the finish.
6. Steam on high heat for about 30 minutes or till cake is done.