Fill the highball glass with ice cubes to chill it.
In a shaker, combine the gin, freshly squeezed lemon juice, and simple syrup.
Add ice to the shaker and shake well to combine the ingredients and chill the mixture.
Discard the ice from the highball glass and strain the cocktail into the glass.
Top up the glass with club soda, allowing the effervescence to infuse the drink with bubbles.
Give it a gentle stir to ensure the flavors are beautifully blended.
Garnish your Tom Collins with a lemon wheel and a tempting maraschino cherry for that final touch of allure.