Banana Walnut bread

Ingredients
2 cups plain flour
1 cup brown sugar ( 3/4 cup if prefer less sweet) 
1 cup olive oil ( or butter if you prefer) 
1 cup mashed ripe banana
1/2 cup walnut ( pound to small pieces)
1 1/2 tsp baking soda

1 tsp baking powder
1 tsp fine salt
1 tsp vanilla essence
3 large eggs

Method
1. Preheat oven to 180F
2. Sieve flour, baking soda, baking powder and salt together. Leave aside.
3. Beat the eggs.
4. Mix olive oil/butter and sugar together in a mixing bowl until smooth. Add eggs, banana and walnuts. Stir in to mix until mixture is well-blended.
5. Line bread tin with grease paper. Pour mixture into the tin.
6. Bake for 40 -50 minutes.
7. Cool to cut and serve.