Preheat the oven to 200 degrees upper and lower heat
In a bowl, mix all the dry ingredients
Mix the liquid ingredients in a seperate bowl
Combine the dry and liquid ingredients and mix to a smooth dough
Cut the banana in pieces and mix it in the dough
Put everything in muffin trays and bake for approx. 20 minutes at 200 degrees
Take the muffins out of the oven, prepare a coffee and enjoy bite by bite!