Banana Cake

4 medium ripe bananas, mashed
3 free range eggs
1/3 cup extra virgin olive oil
2 tbs maple syrup
1 tsp vanilla paste
1 1/4 cup brown sugar
1 1/2 cup self-raising flour
1 1/2 tsp ground cinnamon

Cream cheese frosting :
250g cream cheese, softened
1 cup icing sugar mixture, sifted