- STEP 1
Finely grate the zest from one of the lemons, then squeeze the juice from both
- STEP 2
Strain the juice into the zest and add the sugar, whilst stirring.
- STEP 3
Gradually add the cream, it will thicken slightly as it's stirred
- STEP 4
Pour into a container and place in the freezer until mushy
- STEP 5
Mix with a fork and place back in the freezer until firm.