1. Preheat oven to 180 degrees

2. Add cake mix, water, and vegetable into a mixing bowl and beat on low for 1 minute

3. Scrape down sides of bowl and mix on medium for 6 minutes

4. Add banana and mix on low for 1 minute

5. Divide into 600g lots and pour into prepared bar cake tins

6. Bake for approximately 50 minutes

7. Leave to cook in tin and then upturn onto a cooling rack

Be careful not to overcook, cooking for longer at a lower temperature can help with this.

Cooking times vary for larger tins and cooking times vary with ovens.

Always grease & paper line tins.