Japanese style cheesecakes are crustless and incredibly light and fluffy. The trick to the fluffiness of this cake is whipping the egg whites separately and then folding it into the batter, this creates a lovely airy texture.
They are already healthier than most cheesecake, I have taken this further to create and even lighter version with lower sugar. To compensate for the less creamy taste, I added some malted milk powder for some richness and depth of flavour. I have also replaced most of the sugar with monk fruit sweetener. You can replace with stevia too if you like. I have been told by friends that they can't tell that this is a healthy version !