Mix together room temperature whole milk, mashed ripe bananas, eggs, melted butter, apple cider vinegar, almond extract, and vanilla bean paste
In a separate bowl, combine sifted plain flour, light brown sugar, sifted baking powder, sifted bicarbonate of soda, cinnamon powder, salt, and orange zest
Fold the wet ingredients into the dry ingredients until combined
Stir in the chopped chocolate
Pour the batter into a baking tray
Bake in the oven until golden
While the sponge bakes, prepare the sauce by combining evaporated milk, double/heavy cream, diced butter, light brown sugar, sea salt, vanilla bean paste, and sifted cornflour in a saucepan
Heat the sauce mixture until the butter melts and the sauce thickens
Once the sponge is baked and still hot, scoop it out and pour the butterscotch sauce over it
Serve warm with ice cream or hot custard
