Preparation Fill an 8- to 10-ounce highball glass with crushed ice. Stir together Aperol, rum, lemon juice, and bitters in a small glass measuring cup. Add sugar to taste, stirring until sugar is dissolved, then pour over ice.
Preparation Fill an 8- to 10-ounce highball glass with crushed ice. Stir together Aperol, rum, lemon juice, and bitters in a small glass measuring cup. Add sugar to taste, stirring until sugar is dissolved, then pour over ice.