You could also substitute sugar for silver spoon light - it hasn't got as many calories as sugar but tastes better than pure sweeteners (if it bothers you)..And I just found this recipe on the internet..don't know what it is like but you could use it for cupcakes, too
Low Syn Sponge Cake
Makes a chocolate, orange or vanilla sponge
9 syns per whole recipe – any option
Cake Batter:
6 eggs
2oz SR flour OR 1oz SR flour and 1oz cocoa powder if you want chocolate cake
9 tablespoons granulated sweetener
2 teaspoons orange OR chocolate OR vanilla essence (up to you)
To decorate (or fill!):
1 tub quark / 150g 0% Greek yogurt
Strawberries / Satsuma segments / raspberries (as many or as few as you want)
2 teaspoons of vanilla or orange essence
6 Tablespoons Granulated sweetener
Separate the eggs. Whisk up egg whites until stiff
In a separate bowl whisk egg yolks with the essence & sweetener. Add a 1/4 of the egg white & beat until pale yellow.
Add the flour (or flour/cocoa) gradually & fold into the mix carefully, when done add the rest of the egg whites & fold in.
Grease and line a swiss roll tin (I spray with Frylight then line with parchment paper - my tin measures 30cmx19cm) & bake in the oven at 180deg for about 10 to 12 mins, until golden & firm to the touch.
Take out of the oven, remove from tin, leave to cool, when cool cut in half.
Filling & topping:
Mix the quark/yogurt with the orange or vanilla essence & sweetener, spread 3/4 on the bottom layer of the cake, slice the fruit & put on top of that, put the top of the cake on & use the rest of the filling to top with the rest of the fruit.