Chop roughly walnut, set to side
Grease muffin pan, set to side
Preheat oven to 400 F
Mix dry ingredients in a bowl, then mix in chopped walnut
In a food processor, mix eggs, bananas, oil, essence and sugar.
Pour mixture into flour mixture, and mix until just dampened
Divide batter and bake for 18-20 mins
There you go