Thank you for your help, In the Xmas I baked chocolate cake with stevia. It was very good, it has no bitterness aftertaste. I used raw Cocoa (no sugar added), light peanutsbutter instead of butter, wheat with rice flower and soy milk instead of regular milk and of course stevia instead of sugar. I liked it so much, at least it helped when I crave for sweet. I bought stevia online from EverStevia.com it was very good and very cheap too.