A Bordeaux blend refers to a wine made from two or more of the classic grape varieties traditionally grown in the Bordeaux region of France. These blends usually include Cabernet Sauvignon, Merlot, Cabernet Franc, Petit Verdot, and Malbec. The specific mix of grapes varies, giving winemakers the flexibility to create complex wines with balanced characteristics. Bordeaux blends are popular worldwide, with many regions adopting this classic combination.