Beat the eggs with the sugar, salt and baking soda. Mix in the milk and gradually add the flour. You need to get a pancake batter with a rather thick density.
Optionally, add a few drops of oil to the dough. Preheat a Teflon pan with oil droplets, pour a ladle of the mixture and bake pancakes.
Once you have finished frying them, fold the pancakes into pockets. Coat the resulting 2 pockets with plenty of chocolate and arrange banana slices in them. Serve immediately with ice cream if desired.