Firstly coat the baking tray with margarine, put aside.
Preheat the oven 180C.
Prepare 2 bowls, mix flour, salt, and baking powder in one bowl.
Mix egg, canola oil, sugar, and vanilla liquid in another bowl. Mix them well with fork.
Pour the egg mixture into flour mixture, mix them well.
Add milk and Greek yoghurt, mix them well.
Add sultanas and walnuts, mix them well.
Mash bananas using a fork, add them into the batter and mix them well.
Pour the batter into baking tray, spread it well.
Bake it for 25 mins or until it turns golden.
Banana and walnut cake is ready to enjoy. This recipe is also can be used for banana muffin.
