Sherry Sazerac (Jerezerac)

Select an Old Fashioned glass and chill it thoroughly.

Prepare a garnish by twisting a strip of lemon zest.

Rinse the chilled glass with absinthe, ensuring the entire interior is coated, then discard any excess.

In a mixing glass, stir together the sherry, rich sugar syrup, and bitters with ice until well chilled.

Strain the mixture into the absinthe-rinsed Old Fashioned glass.

Express the lemon zest twist over the cocktail to release its oils, then discard the twist.