step 1
Preheat oven to 350f,180c or gas 4.
step 2
Butter or line with baking parchment an 18cm cake tin or 1kg loaf tin.
step 3
Put flour, sugar, margarine and eggs into a mixing bowl.Beat with wooden spoon or whisk until well mixed. Do not over mix.
step 4
Peel the bananas and mash. Stir into flour mixture with the orange rind and fruit if using.
step 5
Put into prepared tin, and bake for 1 and 1/2 hours.
step 6
If necessary cover with foil to prevent burning.
step 7
Test with a skewer to see if the cake is done.
step 8
Turn out onto wire rack to cool a little before cutting.
step 9
Stores well for 2-3 days or longer, sealed, in the fridge.