Add the oats and boiling water into a mixing bowl. Allow to sit for 15 minutes as this allows the oats to soften a bit.

Meanwhile, mash the banana in a separate bowl until as smooth as possible. Stir in the syrup and protein powder.

Pour this mixture over the softened oats.

Add the remaining ingredients into the bowl and stir to combine.

Pour the oat mixture into a baking pan. Top with extra dark chocolate or more blueberries if desired.

Bake at 170 C for 30-35 minutes.

Allow to cool slightly, then cut into squares and enjoy.