Cossart Gordon produces fortified wines from Madeira, the Portuguese island region renowned for its oxidative aging process and complex, layered profiles. The winery works with the classic Madeira varieties—Bual, Sercial, Tinta Negra Mole, Malvasia, and Verdelho—each contributing distinct character to the house's portfolio. The Bual Madeira, made from the eponymous dark grape, and the Finest Madeira Medium Rich, a blend of four varieties, represent the core offerings. Both wines have been assessed by major critics including Wine Spectator, Wine Enthusiast, Wine Advocate, and Decanter. Madeira's unique production method—extended aging in warm conditions—yields wines of considerable depth and structure, with flavors that evolve across years in the glass. Cossart Gordon's expressions reflect the region's technical mastery and the distinctive terroir of Terras Madeirenses.