Step 1.
- Prepare the Collins glass by rimming it with smoked salt.
Step 2.
- In a shaker, combine the Scotch whisky, fresh lemon juice, simple syrup, and a splash of club soda.
Step 3.
- Fill the shaker with ice and shake well until chilled.
Step 4.
- Strain the mixture into the prepared Collins glass filled with ice.
Step 5.
- Top off with additional club soda and gently stir to combine.
Step 6.
- Garnish with a lemon twist. Serve immediately.