My Xmas Dessert - Need help!

[Xylem]

Hey.

So I'm gonna contribute and make a christmas dessert for my family. However... I tested it today and it was too sweet. I wanted to serve the spongecake with icecream + berry sauce + fruits.

The current ingredients are:

Sugar, Eggs, Self-Raising flour, smal amounts of cornflour, Melted Chocolate and small amounts of cooking cream.

I was thinking of reducing the sugar amount, and adding more self-raising flour. However, does anyone know what it'll turn out like? Will it rise by heaps?

Also, my current spongecake has this 'stickiness' to it. Can removing small amounts of sugar remove the stickiness? Or do I just add more flour? lol.

If you've any experience in this, can you share? Thanks! (BTW It's due tomorow night. lol!)