Fill the martini glass with ice and water to chill. Set aside.
Add vodka, lychee juice, rose syrup, and lime juice to the cocktail shaker.
Fill the shaker 3/4 full with ice cubes.
Shake vigorously for 10-15 seconds until well-chilled.
Empty the ice water from the martini glass.
Double strain the cocktail through both strainers into the chilled glass.
Garnish with 2-3 lychees on a cocktail pick.
Notes
The cocktail works best with canned lychees and their syrup rather than fresh fruit.Store rose syrup in the refrigerator after opening to maintain freshness.For a non-alcoholic version, replace vodka with lychee juice and add a splash of club soda.Choose a premium vodka for the best results, as its quality will affect the final taste.Keep ingredients cold before mixing for the best texture and temperature.