Tom Collins

2 fluid ounces gin

2 fluid ounces lemon juice

1 fluid ounce simple syrup

1 dash bitters

1 cup ice cubes

¼ cup cold club soda

1 slice lemon, for garnish

1 maraschino cherry

Fill a cocktail shaker with ice. Pour in the gin, lemon juice, simple syrup and a dash of bitters. Cover and shake until the outside of the container is frosty, about 15 seconds. Strain into a highball glass full of ice. Top off with club soda and garnish with a lemon slice and maraschino cherry.