Place everything, except the orange peel, in a power blender and blitz until smooth. I used the veg setting on my G2.3.
Pour into glasses and enjoy.
Notes
I prefer my smoothies unsweetened, but you can add a tsp or two of honey if liked.If you're feeling up for it and your orange is organic, add a quarter to a half of the orange peel as well.Please note: calories and other nutritional information are per serving. They're approximate and will depend on exact ingredients used.