Microwave Eggless Marble Cake

This month I was looking for some Microwave baking recipes to bake something on my hubby's birthday and for that organized an Spotlight event. I have made this marble cake for him, which came out really well. The recipe I've tried, it's from Nandini's food page, her recipe was eggless, thought to give it a try. This time I tried with her measurements, but I think according to my taste, I've to change some measurement next time. Sweet level was really low according to her measurement. I'm giving here the recipe as I think it should be..........

Ingredients :

All purpose flour : 1 cup
Sugar : 3/4 cup
Milk : 3/4 cup(lukewarm)
Butter : 3tblsp.+ 1tblsp.
Cocoa powder : 11/2 tblsp.
Baking powder : 1 tsp.
vanilla essence : 1 tsp.

Method :

Mix together flour and baking powder.
Powder the sugar in a dry grinder, that makes it easy to cream together sugar and butter. Melt 3 tblsp. butter in a Microwave safe bowl, take it out, add powdered sugar. With a spoon, beat till it looks fluffy.
Then add vanilla essence and flour. Gradually add milk and mix with a hand mixer till the batter looks creamy.
In another micro safe bowl, melt 1tblsp. butter, take it out, add cocoa powder and mix well. If you see teh whole chocolate didn't melt, add little(~1 tblsp.) milk and mix.
Finally, take a microwave safe baking mold, grease with butter, dust with little flour, then add 1 layer of white batter(flour batter), then 1 layer of chocolate mix. Repeat this until of of your batter is used. Then roughly mix both the batter with a fork or spoon to bring the marble effect.
Micro in high for 5 minutes. Check your microwave wattage first, mine is 800 watt). Mine took whole 5 minutes to bake. Insert a tooth pick, if it comes out clean, then Your Marble cake is ready. Let it stand for another 5 minutes without any power.
Take out the mold, unmold it and enjoy immediately.

This is for my Spotlight : Baking without Oven event...

& To Any One Can Cook, a weekly event by Taste of Pearl City