Step 1.
- Cut a ripe watermelon into chunks and blend until smooth to create watermelon juice.
Step 2.
- Strain the juice through a fine mesh sieve to remove any pulp.
Step 3.
- In a shaker, combine 2 oz of vodka, 4 oz of watermelon juice, and 1 oz of lime juice.
Step 4.
- Fill the shaker with ice and shake well until chilled.
Step 5.
- Strain the mixture into a highball glass filled with ice.
Step 6.
- Top off with soda water for a refreshing fizz.
Step 7.
- Garnish with a slice of watermelon on the rim.