To churn in a machine: In a bowl, mix the ingredients well together. Churn in the ice-cream machine until scoopable. Transfer to a freezer container and freeze until needed.
To churn by hand: Mix the ingredients in a bowl and freeze in the bowl for about 90 mins until it starts to freeze around the edges. Stir well then repeat the process twice more until the mix is smooth and frozen. Freeze in a suitable container until needed.