The Midnight Lounge Espresso Martini by Golden Rule in San Francisco is a canned cocktail that combines Equator Coffee espresso, cinnamon, vodka, vanilla liqueur, and chicory root to deliver a high-quality ready-to-drink experience. The inspiration for this cocktail struck during a leisurely walk, following a taste of the house specialty at a local bar. The creators realized that while the espresso martini had mixed connotations, they were still enjoying its sweet and bitter qualities along with the effects of premium vodka and caffeine. This led them to craft the cocktail, embracing its unique blend of flavors and effects.