Halve the avocado and scoop out the flesh into your blender. Peel the oranges and cut them into pieces. Slice the skin and white pith from the lemon, then add the lemon. Roughly chop the cucumber.
Add everything to the blender with a large cupful of ice and 250ml water. Blend till smooth, adding more water as necessary.
Ripe and ready
When you unpack your box, pop your avocado in a bowl or paper bag with the banana we’ve sent and that will help ripen it.