
SM23 was an underground Manhattan-style cocktail lounge located at 3 Speedwell Avenue within Headquarters Plaza in Morristown, New Jersey, though the venue is noted as closed as of June 2026. During its operation, SM23 distinguished itself through world-renowned mixology, with renowned Australian mixologists Grant Collins and Michael Enright designing the cocktail menu and training bar staff to impeccable standards. The intimate space featured plush leather banquettes and resident DJs on Friday and Saturday nights, while the beverage program paired inventive drinks like the Grilled Pineapple and Cracked Pepper Martini with Indian and Pan-Asian tapas offerings. The sophisticated cocktail experience provided by well-balanced drinks crafted with premium organic spirits and fresh ingredients established SM23 as a destination for discerning cocktail enthusiasts seeking refined mixology.