Freeze very ripe bananas directly in their skin. Before preparing the recipe, thaw in the microwave oven for a few seconds at a time. Cut one end of the bananas and press to extract the flesh.
You can substitute 125 ml (1/2 cup) of the flour for 125 ml (1/2 cup) of ground flaxseed.
Mash the bananas with the lemon juice to prevent the flesh from browning.
At this stage, do not overbeat.