What you'll need:
1 stalk of kale, leaves removed and stalk discarded
1/2 an orange, peel removed and discarded
small amount of fresh mint leaves
6 cubes of ice
1/2 cup of water
Put the kale, orange and mint in a blender and whiz until smooth. Add the ice and whiz until the ice is crushed. Add the water and whiz until comined.