Duneden

Chill a cocktail coupe by filling it with ice and setting it aside.

In a mixing glass, combine the Irish whiskey, sweet vermouth, Parfait Amour, and the listed absinthe and 2 dashes of orange bitters.

Fill the mixing glass with ice and stir until well-chilled.

Discard the ice from the cocktail coupe and strain the mixture into the glass.

Express a twist of lemon peel over the drink to release its oils, then discard the peel.