
Bénédictine D.O.M. is a French brandy-based herbal liqueur made from a secret blend of 27 herbs, roots, flowers and spices, sweetened with honey.
Everything near it is either drier or more honeyed, so plan to correct the sweetening rather than to match it. Where Bénédictine is the whole point of the drink — a Vieux Carré, a Singapore Sling — no bottle stands in.
B&B
Bénédictine pre-blended with cognac, about 60/40. It is drier, so it stands in for Bénédictine measure for measure; the other direction works less well — Bénédictine in place of B&B makes the drink noticeably sweeter and thicker.
Yellow Chartreuse
A different monastic herbal liqueur, sweeter and more floral, with honey in its own right; it is the usual bar substitute when the recipe wants complexity and not that particular honey.
Drambuie
A Scotch-whisky liqueur sweetened with heather honey, so it covers the honey side and lets it lead, and it suits a whisky drink and overwhelms a delicate one.
Sugar preserves as surely as alcohol, so an opened bottle keeps for years and what it loses is aroma, quietly. In the cold, sugar can crystallize at the bottom: gentle warmth and a shake put it back into solution. Keep it out of direct sun, which takes the color and the scent together.

Bobby Burns
Blended Scotch whisky

Bobby Burns (Craddocks recipe)
Blended Scotch whisky, Rosso vermouth

Singapore Sling
London dry gin

Singapore Sling – IBA
London dry gin

Singapore Sling (Old Tom Gin)
Old Tom gin

Vieux Carré
Rye whiskey, Cognac, Rosso vermouth

De La Louisiane
Rye whiskey

BBC
Cognac, Bénédictine D.O.M. liqueur

Between The Sheets (David Wondrich recipe)
Brandy

Highland Highball
Blended Scotch whisky

Widows Kiss
Calvados

Aztec
Bourbon

Brainstorm
Irish whiskey

Chrysanthemum
Dry vermouth

Flying Dutchman
Oude genever

Honolulu Cocktail No. 2
London dry gin

Monkey Gland No. 2
London dry gin

Rolls Royce
London dry gin

Shanghai Gin
London dry gin, Herbal liqueur (e.g., Yellow Chartreuse), Bénédictine D.O.M. liqueur

Vancouver
London dry gin

Gypsy Queen
Vodka

Kentucky Colonel
Bourbon

London Gypsy
London dry gin

Mr. Burns
Speyside single malt Scotch whisky