Put the condensed milk (1 can) and double cream (500ml) into a large bowl and whip until they form a stiff peak (easiest if you have an electric mixer) .
While the condensed milk and cream are whipping, grate the zest and squeeze the juice from 4 limes and finely chop the mint leaves (keep checking on the mixer and stop it once it's done).
Gradually add the white rum (150ml) and lime juice, add no more than 2 tbsp at a time and ensure each addition is fully combined before adding the next. Next add the lime zest and chopped mint and stir to combine.
Pour into a freezer proof container and freeze until firm (about 2 hours).
Have you tried this recipe? Please leave a comment and rating at the bottom of the page to let others know what you thought.