Peel the bananas, cut into thin slices and put into a bowl. Squeeze the lemon juice and pour over the chopped bananas (then they will not turn black).
In a small pot, heat the sugar. Gradually pour the cream into the melted sugar, stirring dynamically all the time, while stirring, add the butter and cinnamon and stir dynamically while still heating.
Melt some butter in a large, non stick frying pan over medium-high heat. Add banana. Cook, turning occasionally, for 5 minutes or until lightly browned.
Add prepared toffee sauce to the frying bananas, caramelize for a while.
Put it immediately into cups and put a scoop of vanilla ice cream on top. Enjoy!
Notes
If someone does not like cinnamon do the same without lemon and cinnamon.