Step 1.
- Chill a martini glass by filling it with ice water.
Step 2.
- In a shaker, combine the gin, dry vermouth, and rose water with ice.
Step 3.
- Shake gently for about 10 seconds to chill the mixture.
Step 4.
- Empty the ice water from the chilled glass.
Step 5.
- Strain the mixture into the chilled martini glass.
Step 6.
- Garnish with a rose petal on the surface.