Preheat oven to 180 degree C. Take any shaped baking tray and grease it lightly with butter if you want. But it is not necessary. I used heart shaped baking pan.
Take sauce ingredients in a sauce pan and melt gently.
Pour this into a baking pan, spread evenly. Arrange sliced bananas on top and set aside.
Take flour, baking powder, baking soda, cinnamon in a bowl. Mix well and set aside.
In a separate bowl, mix egg, milk, oil and vanilla.
Now pour this wet ingredients into the dry and fold gently.
Spoon this over the banana layer and bake for 25 to 30 mins.
Remove the pan from oven and leave to cool for couple of mins and immediately unmould.
Serve.
Video
Notes
Use ripe bananas for best taste.
You could skip adding salt when making the caramel sauce. But salt adds nice taste to the sauce like salted caramel sauce.
Never leave the cake to cool completely. Just let the cake cool for 2 minutes after you remove from the oven and unmould immediately. Else the caramel may harden and the cake won't come out of the pan.
STORAGE
You can keep the cake in a air tight container at room temp for one day.
Store in fridge for longer shelf life.
SERVING SUGGESTIONS
This banana upside down cake taste amazing when served hot or warm with a scoop of vanilla ice cream.