1: Preheat the oven to 180ºC.
2: Peel and mash the bananas with a fork on a plate and transfer to a small bowl. Mix in the flaxseed egg and oil.
3: Mix the flour with the sugar and salt in a large bowl.
4: Add the banana mix to the dry ingredients then pour in the coffee.
5: Combine quickly without over-working. Pour into a greased loaf dish.
6: Bake in the oven for 50 minutes.