All you need is for about 4 large glasses:
- About 2 pints/a litre of natural low fat yoghurt
- 3 banana's broken into bits.
- About a pound of strawberries.
- Sugar to taste (or sweetening if you can deal with the artificial taste it adds)
I had a couple of raspberries that needed using up so I threw them in as well - any soft fruit will do really - apples will give a chunkier result unless you finely grate them first.