Seasn Dark Cocktail Bitters is an alcohol-free cocktail bitters made by Speciality Brands in London. The aroma is spicy and aromatic, led by kola nut, smoked cherrywood, star anise and cinnamon. To taste it leans savoury and umami, built on king of bitters, a bitter herb, alongside black pepper and mushroom, with a touch of cocoa rounding things out.