I make a yummy low fat cake with no sugar or flour,it sounds a bit odd and looks like an omlette, when it comes out the oven but if you can get past that,it is yummy. its 4 egg whites whisk until light peaks and put to one side,and then add the 4 yolks, sweetner, 1 tsp baking powder,vanilla essence,and half the egg white,and half a tub of quark,and whisk it all up,and then slowly add the other half of the egg white,and put into two baking tins,for bout 20 mins on gas 4,just keep checking it,it will rise, but once out the oven will go down, dont worry. in another bowl add the rest of the quark and a small tub of fromais frai,and some sweetner for taste, once the cake is cool turn out,it will look like an omlette sort of,but wont taste like one,smooth half the fromais on,and i add raspberrys or strawberrys,and put the top on and add the rest of the fruit and mixure. the whole thing is only half a syn on slimming world :) i have just made a lemon and raspberry one,with lemon and lime zest on the top,so tasty :)