For the plum and nectarine compote:
200g plums
200g nectarines
1 tsp vanilla extract
For the crumble topping:
150g plain flour
125g cold margarine
100g oats
80g demerara sugar
For the cake
4 eggs
175g self-raising flour
175g caster sugar
175ml of sunflower or vegetable oil1 tsp vanilla sugar or vanilla extract