01 -
Preheat the oven to 350°F (175°C). Line a 12x17 inch pan with parchment paper, ensuring it is at least 2 inches longer than the pan. Spray the pan with cooking spray.
02 -
In a small bowl, combine the flour, baking powder, baking soda, salt, and ground cinnamon.
03 -
In a separate bowl, beat the eggs and sugar until well combined. Add the flour mixture and mix until just combined. Stir in the lemon juice and mashed banana.
04 -
Spread the batter evenly over the prepared pan. Place in the oven and bake for 10 minutes, checking for doneness. Bake for up to 5 minutes longer if needed.
05 -
Remove the pan from the oven. Fold one end of the parchment paper over the cake and roll it up while it is still warm. This prevents cracking. Place the rolled cake on a wire rack to cool or refrigerate to chill.
06 -
Beat the cream cheese, butter, and caramel sauce together until creamy. Sift in the powdered sugar and beat until smooth. Keep at room temperature for easier spreading.
07 -
Unroll the cooled cake carefully and spread the filling evenly across the surface. Roll the cake back up, removing the parchment paper as you go.
08 -
Pipe whipped cream on top of the rolled cake. Add sliced bananas, drizzle with caramel sauce, and sprinkle with walnuts.