Step 1.
- Chill a cocktail glass by filling it with ice and water.
Step 2.
- In a cocktail shaker, combine 2 ounces of vodka and 1 ounce of olive brine.
Step 3.
- Add ice to the shaker and shake gently for about 10 seconds.
Step 4.
- Dump the ice water from the chilled glass.
Step 5.
- Strain the mixture into the chilled cocktail glass.
Step 6.
- Garnish with a single olive.