Preheat your oven to 180℃.
In a big bowl, combine the bananas, maple syrup, eggs, butter and vanilla extract. Whisk well to combine.
In another bowl, combine the flour, hemp seeds, baking soda, baking powder, salt and cinnamon. Mix until combined.
Stir the dry ingredients into the wet ones. The fold in the chocolate chips and walnuts.
Oil or butter your muffin tray and decant about a 1/3 of a cup of the mixture into each muffin tray well. Then sprinkle each muffin with a teaspoon of rolled oats and a pinch of salt.
Bake for 16-18 minutes, or until your knife just comes out clean.
