Preheat the oven to 350F/ 180C. Line a 9” square baking tin with baking paper. Peel 2 medium ripe bananas and place the flesh into a large bowl. Use the back of a fork to mash the bananas. Crack in 2 medium eggs and loosely whisk to combine.
Measure the dry ingredients using kitchen scales for accuracy. Add the pepitas/pumpkin seeds, shelled hemp seeds, ground flax seeds, tiger nut flour and sea salt to the bowl. Use a spatula to combine them together.
Add the blueberries, vanilla extract, cinnamon, baking powder, and maple syrup (optional). Stir the mixture until all the ingredients are well incorporated.
Transfer the mixture to the lined baking tin. Use the back of the spatula to level out the surface. Place in the center of the oven and bake for 25-30 minutes, or until golden and set in the middle. Allow to fully cool in the pan before slicing into equal portions.