Drain the lychees, keeping half the juice. Check that all the lychees are pitted.
Place the reserved juice and lychees in a glass dish and freeze for about 3 hours.
Using a metal spatula, transfer the frozen lychee mixture in a food processor. Process until everything is crumbly. Add the remaining ingredients and blend until mixture is smooth and takes a bit of volume. Serve immediately or store in an airtight container in the freezer.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.