Ingredients 2 sticks lemongrass 280ml/10fl oz; pint milk 2 ripe mangoes, skinned and stones removed 2 tbsp Greek yoghurt 2 scoops vanilla ice cream Preparation method Smash the lemongrass in a pestle and mortar until its aromas are released. Boil half of the milk and add the lemongrass. When the infused milk has cooled to room temperature, remove the lemongrass and discard. Place the milk in a blender, together with the other ingredients and the remaining cold milk. Whiz until smooth. Pour into a tall glass to serve.