Mix together with hand or stand mixer in full power for approx 1 minute until a bread crumb mix has been achieved

Put two thirds of the mixture into the prepared tin and press down evenly using the back of a spoon

Put all of the filling ingredients into a blender or a bowl with hand blender. Blend until evenly combined. This is why I prefer frozen fruit, it's not so messy. Spread over the base layer

Add the rest of the oats to the leftover base mixture and stir through - this is purely for texture, if you prefer you can just use all of the oats and not hold any back - spread evenly over the filling

Remove from oven and mark into slices/squares whilst warm