Prep glass: Place your cocktail glass in the freezer a few hours before to ensure it is chilled.
Rim the Glass: Wet the rim of your cocktail glass with a lemon slice and dip it into sugar to create a sugary rim, place the glass in the freezer again to kepp it chill.
Mix Ingredients: In the shaker, combine 1 dash Angostura aromatic bitters, 1 tsp sugar, ½ oz lemon juice, ¼ oz Maraschino Liqueur, ½ oz Triple Sec, and 2 oz Brandy.
Shake: Add ice cubes to the shaker and shake the ingredients until chilled.
Strain: Fine strain the mixture into your rimmed cocktail glass.
Garnish: Artfully drape the long, thin lemon twist inside the glass, ensuring it touches the sugary rim and cascades into the drink.