Prepare all ingredients. Preheat an oven to 180-190°C as the batter is cooked fast even without blender.
The weight of bananas is mentioned without the peels and you will need one extra banana to decorate it.
You can use any sort of chocolate and nuts cut into small pieces with a knife.
Pay attention to the fact that milk and seed oil are mentioned in grams, not in milliliters!
Combine flour, dough loosener, saleratus and salt.