Hey one of my friend Nandita who runs a very popular blog, told me how to make white sauce in a micro,here is how it goes

• just melt butter first, for 30 seconds
• then add 2 tbsp of maida, micro for 1 min, then one more.
• then add 1 cup milk, micro for 3 minutes.
• whip well with fork, add 1/2 cup more milk and micro again.
• whip , salt, pepper and done.

Thats it done!  add this to pasta veggie anything.....nice.

I haven't tried it to make in a micro though,but sounds fun and simple.Haven't been cooking lately:-(!!!