This is like grown-up Angel Delight. Put two ripe bananas and one avocado in a blender. Add one heaped tbsp of coconut oil, one heaped tbsp of cocoa or cacao powder, a pinch of salt and blitz. Add a sweetener (golden syrup, xylitol, honey or agave) until it tastes good. Optional extras: a raw egg or scoop of whey protein powder makes it unctuous. One tsp of instant coffee makes it ‘mocha’.