1. If using tinned fruit spread in the bottom of the tin, if using fresh fruit, stew the fruit first.     
2. Combine the sugars and flour and oats, melt the marg and mix into the flour mix.                 
3. Spread the mix over the fruit.                                                      
4. Bake in a pre-heated oven at 200°c/400°f or Gas Mark 6 for 30-40 minutes until the top is crisp.