1 bottle of Coca Cola (Non-diet!)
1 bottle of Orange Juice (Preferably Britvic Orange Juice)

Fill 1/4 of a pint with ice. Pour over the orange juice, then the Coke. Stir gently to mix. You'll see where the name comes from. Refreshingly different. If you ask for this in a pub, don't make do with the awful cola from the gun!