Broadmoor

Use 2:1 rich simple syrup for its listed portion.

Chill a cocktail coupe in preparation for serving.

Create an orange zest twist for garnish.

Combine the single malt Scotch whisky, Green Chartreuse, rich sugar syrup, and a dash of orange bitters in a shaker with ice.

Fine strain the mixture into the chilled cocktail coupe.

Express the flamed orange zest twist over the cocktail and then use it as a garnish.