Banana cake with cream cheese frosting

• Method

1. Step 1
   Preheat oven to 180°C. Brush a round 20cm (base measurement) cake pan with melted butter to grease. Line the base and side of the pan with non-stick baking paper.
2. Step 2
   Place the butter, sugar, banana, eggs and vanilla in the bowl of a food processor, and process for 2 minutes or until well combined. Add the buttermilk and process until combined.
3. Step 3
   Add the flour and bicarbonate of soda, and process until just combined. Pour the mixture into the prepared pan. Shake the pan to settle the mixture. Bake in oven for 1 hour or until a skewer inserted into the centre comes out clean. Set aside in the pan for 10 minutes to cool slightly, before transferring the cake to a wire rack to cool completely.
4. Step 4
   Meanwhile, to make the cream cheese frosting, use an electric beater to beat the cream cheese and butter in a bowl until well combined. Add the icing sugar and beat until well combined. Add the buttermilk and beat until the mixture is pale and creamy.
5. Step 5
   Place the cake on a serving plate. Spread the cream cheese frosting over the top of the cake.
6. Step 6
   Peel and thinly slice the extra banana. Lightly brush 1 side of each slice of banana with lemon juice. Arrange the banana slices, lemon juice side up, around the edge of the frosting to serve.