Place all ingredients in a blender. Secure the lid firmly on and process until the mixture is thick and smooth. Drink with a thick shake straw and you'll probably need a spoon as well. You can decorate your smoothie with pieces of fresh fruit and mint sprigs. Makes 2 big smoothies.
You can invent your own flavoured smoothies by adding different fruits - apricots and peaches are great, so are mixed berries, pawpaw and passionfruit, canned fruit in light syrup or fruit juice is also really good.