This recipe contains banana as a natural sweetener. However it would be very easy to swap this out for sugar, applesauce or a liquid sweetener such as maple syrup. A 1/4 cup of one of these would be sufficient. The banana does also help to bind the oats together, so you can swap the banana for 1 egg, or 1 flax-egg (1 tbsp ground flaxseed + 2 tbsps water).