Preheat the oven to 175C/ Gas Mark 5.
Line a loaf tin with baking paper or parchment. Leave some over the edges, you will use this to pull the cake out of the tin later.
Roughly mash the bananas in a large mixing bowl
Add the sugar, oil, vanilla, and plant milk, and give it a good stir. You want the sugar to start to dissolve.
Sift in the flour, baking soda, salt, and cinnamon, and mix.
Transfer the banana cake mix to the lined tin.
Add the nuts or any extra bits of sliced banana on top & pop in the oven.
Bake for about 35 mins. Then test the cake with a skewer. If it comes out clean, then the cake is done. If not, put it back in your oven for another 5-10 mins.
Let the cake cool & use the paper you cleverly left hanging over the edges to remove it from the tin.
This banana bread will keep for around a week in an airtight container. It also freezes well!