Place mint leaves and 1 tablespoon each of the agave syrup and lime juice in a glass.
Crush or “muddle” them with the blunt end of a wooden spoon until the mint is broken up and releases its juices.
Stir in the remaining agave syrup, lime juice and rum.
Adjust to taste.
To serve, scoop the sorbet into decorative glasses and divide the mojito muddle event over each.