Roughly chop the cucumber and add it to your blender. Quarter the apple and slice out the core. Roughly chop the apple and add it to the blender.
Tip in the raspberries. Tuck in the spinach and add the mint leaves. Pour in 300ml maple water and add a few ice cubes, then blitz for 1-2 mins till well combined.
Big is better
This smoothie uses quite a few bulky veg, so you need a big blender to make it all in one go. If you have a smaller blender you can make it in two batches, using half the ingredients each time, or blend the cucumber and apple with half the maple water and pour it into a large jug. Then blend the remaining ingredients together and stir them into the cucumber and apple mix.