Grapefruit Lemonade

Ingredients:
3/4 a fluid ounce or 2.25 centilitres of Grenadine
1 & 1/2 fluid ounces or 4.45 centilitres of Grapefruit Juice
Soda Water
1 & 1/2 fluid ounces or 4.45 centilitres of Grapefruit Juice
Soda Water
Instructions:
Place some ice cubes in a large tumbler, add grenadine syrup and grapefruit juice, top up with soda water. Stir a little and serve with a drinking straw.
