Gwen's Fruit Sponge

I don't know why, but this recipe always comes out so much more delicious than other fruit sponges.
Gwen usually serves it with plenty of whipped cream.

Gwen's Fruit Sponge

Ingredients
Fruit2 oz butter1/2 cup sugar1 egg1/2 cup self raising flour

Instructions
1. Cook the fruit, then while you make the batter, put the fruit in a casserole dish then into oven turned onto 180 degrees.
2. Soften butter and then cream the butter and sugar together until very pale and fluffy.  3. Add egg and beat again.4. Cover the fruit with batter and bake for 40 min, or when ready, golden and done.
5. Take out of oven and sieve icing sugar on the top.