Ingredients:

  • 473 ml (16 oz) Cola (e.g., Coca-Cola, Pepsi), chilled
  • 30-60 ml (1-2 oz) Grenadine syrup, high-quality
  • Maraschino cherry, for garnish
  • Ice cubes

Instructions:

  1. Fill a highball glass with ice cubes.
  2. Pour the chilled cola into the glass, leaving about an inch of space at the top.
  3. Slowly pour in the grenadine syrup.
  4. Gently stir the mixture with a bar spoon to combine (avoid excessive fizzing).
  5. Garnish with a maraschino cherry and serve immediately.